diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index d627a55ce8b5b..f46014506bd85 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -5393,7 +5393,7 @@ namespace ts {
             }
 
             function createPropertyNameNodeForIdentifierOrLiteral(name: string, singleQuote?: boolean) {
-                return isIdentifierText(name, compilerOptions.target) ? createIdentifier(name) : createLiteral(isNumericLiteralName(name) ? +name : name, !!singleQuote);
+                return isIdentifierText(name, compilerOptions.target) ? createIdentifier(name) : createLiteral(isNumericLiteralName(name) && +name >= 0 ? +name : name, !!singleQuote);
             }
 
             function cloneNodeBuilderContext(context: NodeBuilderContext): NodeBuilderContext {
diff --git a/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.js b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.js
new file mode 100644
index 0000000000000..c3a36c0ba7180
--- /dev/null
+++ b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.js
@@ -0,0 +1,59 @@
+//// [enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts]
+export enum MouseButton {
+	LEFT_BUTTON = 1,
+	RIGHT_BUTTON = 2,
+	MIDDLE_BUTTON = 4,
+	XBUTTON1_BUTTON = 5,
+	XBUTTON2_BUTTON = 6,
+	NO_BUTTON = 0,
+}
+
+export const DOMMouseButton = {
+	'-1': MouseButton.NO_BUTTON,
+	"0": MouseButton.LEFT_BUTTON,
+	"1": MouseButton.MIDDLE_BUTTON,
+	"2": MouseButton.RIGHT_BUTTON,
+	"3": MouseButton.XBUTTON1_BUTTON,
+	"4": MouseButton.XBUTTON2_BUTTON,
+};
+
+//// [enumKeysQuotedAsObjectPropertiesInDeclarationEmit.js]
+"use strict";
+exports.__esModule = true;
+exports.DOMMouseButton = exports.MouseButton = void 0;
+var MouseButton;
+(function (MouseButton) {
+    MouseButton[MouseButton["LEFT_BUTTON"] = 1] = "LEFT_BUTTON";
+    MouseButton[MouseButton["RIGHT_BUTTON"] = 2] = "RIGHT_BUTTON";
+    MouseButton[MouseButton["MIDDLE_BUTTON"] = 4] = "MIDDLE_BUTTON";
+    MouseButton[MouseButton["XBUTTON1_BUTTON"] = 5] = "XBUTTON1_BUTTON";
+    MouseButton[MouseButton["XBUTTON2_BUTTON"] = 6] = "XBUTTON2_BUTTON";
+    MouseButton[MouseButton["NO_BUTTON"] = 0] = "NO_BUTTON";
+})(MouseButton = exports.MouseButton || (exports.MouseButton = {}));
+exports.DOMMouseButton = {
+    '-1': MouseButton.NO_BUTTON,
+    "0": MouseButton.LEFT_BUTTON,
+    "1": MouseButton.MIDDLE_BUTTON,
+    "2": MouseButton.RIGHT_BUTTON,
+    "3": MouseButton.XBUTTON1_BUTTON,
+    "4": MouseButton.XBUTTON2_BUTTON
+};
+
+
+//// [enumKeysQuotedAsObjectPropertiesInDeclarationEmit.d.ts]
+export declare enum MouseButton {
+    LEFT_BUTTON = 1,
+    RIGHT_BUTTON = 2,
+    MIDDLE_BUTTON = 4,
+    XBUTTON1_BUTTON = 5,
+    XBUTTON2_BUTTON = 6,
+    NO_BUTTON = 0
+}
+export declare const DOMMouseButton: {
+    '-1': MouseButton;
+    0: MouseButton;
+    1: MouseButton;
+    2: MouseButton;
+    3: MouseButton;
+    4: MouseButton;
+};
diff --git a/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.symbols b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.symbols
new file mode 100644
index 0000000000000..51313bcdd3e9e
--- /dev/null
+++ b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.symbols
@@ -0,0 +1,63 @@
+=== tests/cases/compiler/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts ===
+export enum MouseButton {
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+
+	LEFT_BUTTON = 1,
+>LEFT_BUTTON : Symbol(MouseButton.LEFT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 25))
+
+	RIGHT_BUTTON = 2,
+>RIGHT_BUTTON : Symbol(MouseButton.RIGHT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 1, 17))
+
+	MIDDLE_BUTTON = 4,
+>MIDDLE_BUTTON : Symbol(MouseButton.MIDDLE_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 2, 18))
+
+	XBUTTON1_BUTTON = 5,
+>XBUTTON1_BUTTON : Symbol(MouseButton.XBUTTON1_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 3, 19))
+
+	XBUTTON2_BUTTON = 6,
+>XBUTTON2_BUTTON : Symbol(MouseButton.XBUTTON2_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 4, 21))
+
+	NO_BUTTON = 0,
+>NO_BUTTON : Symbol(MouseButton.NO_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 5, 21))
+}
+
+export const DOMMouseButton = {
+>DOMMouseButton : Symbol(DOMMouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 9, 12))
+
+	'-1': MouseButton.NO_BUTTON,
+>'-1' : Symbol('-1', Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 9, 31))
+>MouseButton.NO_BUTTON : Symbol(MouseButton.NO_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 5, 21))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>NO_BUTTON : Symbol(MouseButton.NO_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 5, 21))
+
+	"0": MouseButton.LEFT_BUTTON,
+>"0" : Symbol("0", Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 10, 29))
+>MouseButton.LEFT_BUTTON : Symbol(MouseButton.LEFT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 25))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>LEFT_BUTTON : Symbol(MouseButton.LEFT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 25))
+
+	"1": MouseButton.MIDDLE_BUTTON,
+>"1" : Symbol("1", Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 11, 30))
+>MouseButton.MIDDLE_BUTTON : Symbol(MouseButton.MIDDLE_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 2, 18))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>MIDDLE_BUTTON : Symbol(MouseButton.MIDDLE_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 2, 18))
+
+	"2": MouseButton.RIGHT_BUTTON,
+>"2" : Symbol("2", Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 12, 32))
+>MouseButton.RIGHT_BUTTON : Symbol(MouseButton.RIGHT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 1, 17))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>RIGHT_BUTTON : Symbol(MouseButton.RIGHT_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 1, 17))
+
+	"3": MouseButton.XBUTTON1_BUTTON,
+>"3" : Symbol("3", Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 13, 31))
+>MouseButton.XBUTTON1_BUTTON : Symbol(MouseButton.XBUTTON1_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 3, 19))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>XBUTTON1_BUTTON : Symbol(MouseButton.XBUTTON1_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 3, 19))
+
+	"4": MouseButton.XBUTTON2_BUTTON,
+>"4" : Symbol("4", Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 14, 34))
+>MouseButton.XBUTTON2_BUTTON : Symbol(MouseButton.XBUTTON2_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 4, 21))
+>MouseButton : Symbol(MouseButton, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 0, 0))
+>XBUTTON2_BUTTON : Symbol(MouseButton.XBUTTON2_BUTTON, Decl(enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts, 4, 21))
+
+};
diff --git a/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.types b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.types
new file mode 100644
index 0000000000000..955e942460ff5
--- /dev/null
+++ b/tests/baselines/reference/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.types
@@ -0,0 +1,70 @@
+=== tests/cases/compiler/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts ===
+export enum MouseButton {
+>MouseButton : MouseButton
+
+	LEFT_BUTTON = 1,
+>LEFT_BUTTON : MouseButton.LEFT_BUTTON
+>1 : 1
+
+	RIGHT_BUTTON = 2,
+>RIGHT_BUTTON : MouseButton.RIGHT_BUTTON
+>2 : 2
+
+	MIDDLE_BUTTON = 4,
+>MIDDLE_BUTTON : MouseButton.MIDDLE_BUTTON
+>4 : 4
+
+	XBUTTON1_BUTTON = 5,
+>XBUTTON1_BUTTON : MouseButton.XBUTTON1_BUTTON
+>5 : 5
+
+	XBUTTON2_BUTTON = 6,
+>XBUTTON2_BUTTON : MouseButton.XBUTTON2_BUTTON
+>6 : 6
+
+	NO_BUTTON = 0,
+>NO_BUTTON : MouseButton.NO_BUTTON
+>0 : 0
+}
+
+export const DOMMouseButton = {
+>DOMMouseButton : { '-1': MouseButton; 0: MouseButton; 1: MouseButton; 2: MouseButton; 3: MouseButton; 4: MouseButton; }
+>{	'-1': MouseButton.NO_BUTTON,	"0": MouseButton.LEFT_BUTTON,	"1": MouseButton.MIDDLE_BUTTON,	"2": MouseButton.RIGHT_BUTTON,	"3": MouseButton.XBUTTON1_BUTTON,	"4": MouseButton.XBUTTON2_BUTTON,} : { '-1': MouseButton; 0: MouseButton; 1: MouseButton; 2: MouseButton; 3: MouseButton; 4: MouseButton; }
+
+	'-1': MouseButton.NO_BUTTON,
+>'-1' : MouseButton
+>MouseButton.NO_BUTTON : MouseButton.NO_BUTTON
+>MouseButton : typeof MouseButton
+>NO_BUTTON : MouseButton.NO_BUTTON
+
+	"0": MouseButton.LEFT_BUTTON,
+>"0" : MouseButton
+>MouseButton.LEFT_BUTTON : MouseButton.LEFT_BUTTON
+>MouseButton : typeof MouseButton
+>LEFT_BUTTON : MouseButton.LEFT_BUTTON
+
+	"1": MouseButton.MIDDLE_BUTTON,
+>"1" : MouseButton
+>MouseButton.MIDDLE_BUTTON : MouseButton.MIDDLE_BUTTON
+>MouseButton : typeof MouseButton
+>MIDDLE_BUTTON : MouseButton.MIDDLE_BUTTON
+
+	"2": MouseButton.RIGHT_BUTTON,
+>"2" : MouseButton
+>MouseButton.RIGHT_BUTTON : MouseButton.RIGHT_BUTTON
+>MouseButton : typeof MouseButton
+>RIGHT_BUTTON : MouseButton.RIGHT_BUTTON
+
+	"3": MouseButton.XBUTTON1_BUTTON,
+>"3" : MouseButton
+>MouseButton.XBUTTON1_BUTTON : MouseButton.XBUTTON1_BUTTON
+>MouseButton : typeof MouseButton
+>XBUTTON1_BUTTON : MouseButton.XBUTTON1_BUTTON
+
+	"4": MouseButton.XBUTTON2_BUTTON,
+>"4" : MouseButton
+>MouseButton.XBUTTON2_BUTTON : MouseButton.XBUTTON2_BUTTON
+>MouseButton : typeof MouseButton
+>XBUTTON2_BUTTON : MouseButton.XBUTTON2_BUTTON
+
+};
diff --git a/tests/baselines/reference/objectTypeWithStringNamedNumericProperty.types b/tests/baselines/reference/objectTypeWithStringNamedNumericProperty.types
index df5e6ace60f69..156ad55404338 100644
--- a/tests/baselines/reference/objectTypeWithStringNamedNumericProperty.types
+++ b/tests/baselines/reference/objectTypeWithStringNamedNumericProperty.types
@@ -278,7 +278,7 @@ var r13 = i[-01]
 >01 : 1
 
 var a: {
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 
     "0.1": void;
 >"0.1" : void
@@ -308,19 +308,19 @@ var a: {
 var r1 = a['0.1'];
 >r1 : void
 >a['0.1'] : void
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'0.1' : "0.1"
 
 var r2 = a['.1'];
 >r2 : Object
 >a['.1'] : Object
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'.1' : ".1"
 
 var r3 = a['1'];
 >r3 : number
 >a['1'] : number
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'1' : "1"
 
 var r3 = c[1];
@@ -332,7 +332,7 @@ var r3 = c[1];
 var r4 = a['1.'];
 >r4 : string
 >a['1.'] : string
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'1.' : "1."
 
 var r3 = c[1.]; // same as indexing by 1 when done numerically
@@ -344,13 +344,13 @@ var r3 = c[1.]; // same as indexing by 1 when done numerically
 var r5 = a['1..'];
 >r5 : boolean
 >a['1..'] : boolean
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'1..' : "1.."
 
 var r6 = a['1.0'];
 >r6 : Date
 >a['1.0'] : Date
->a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: Date; }
+>a : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": Date; }
 >'1.0' : "1.0"
 
 var r3 = c[1.0]; // same as indexing by 1 when done numerically
@@ -413,8 +413,8 @@ var r13 = i[-01]
 >01 : 1
 
 var b = {
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
->{    "0.1": <void>null,    ".1": new Object(),    "1": 1,    "1.": "",    "1..": true,    "1.0": new Date(),    "-1.0": /123/,    "-1": Date} : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
+>{    "0.1": <void>null,    ".1": new Object(),    "1": 1,    "1.": "",    "1..": true,    "1.0": new Date(),    "-1.0": /123/,    "-1": Date} : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 
     "0.1": <void>null,
 >"0.1" : void
@@ -456,19 +456,19 @@ var b = {
 var r1 = b['0.1'];
 >r1 : void
 >b['0.1'] : void
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'0.1' : "0.1"
 
 var r2 = b['.1'];
 >r2 : Object
 >b['.1'] : Object
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'.1' : ".1"
 
 var r3 = b['1'];
 >r3 : number
 >b['1'] : number
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'1' : "1"
 
 var r3 = c[1];
@@ -480,7 +480,7 @@ var r3 = c[1];
 var r4 = b['1.'];
 >r4 : string
 >b['1.'] : string
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'1.' : "1."
 
 var r3 = c[1.]; // same as indexing by 1 when done numerically
@@ -492,13 +492,13 @@ var r3 = c[1.]; // same as indexing by 1 when done numerically
 var r5 = b['1..'];
 >r5 : boolean
 >b['1..'] : boolean
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'1..' : "1.."
 
 var r6 = b['1.0'];
 >r6 : Date
 >b['1.0'] : Date
->b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; -1: DateConstructor; }
+>b : { 0.1: void; ".1": Object; 1: number; "1.": string; "1..": boolean; "1.0": Date; "-1.0": RegExp; "-1": DateConstructor; }
 >'1.0' : "1.0"
 
 var r3 = c[1.0]; // same as indexing by 1 when done numerically
diff --git a/tests/cases/compiler/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts b/tests/cases/compiler/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts
new file mode 100644
index 0000000000000..e05252bb7661b
--- /dev/null
+++ b/tests/cases/compiler/enumKeysQuotedAsObjectPropertiesInDeclarationEmit.ts
@@ -0,0 +1,18 @@
+// @declaration: true
+export enum MouseButton {
+	LEFT_BUTTON = 1,
+	RIGHT_BUTTON = 2,
+	MIDDLE_BUTTON = 4,
+	XBUTTON1_BUTTON = 5,
+	XBUTTON2_BUTTON = 6,
+	NO_BUTTON = 0,
+}
+
+export const DOMMouseButton = {
+	'-1': MouseButton.NO_BUTTON,
+	"0": MouseButton.LEFT_BUTTON,
+	"1": MouseButton.MIDDLE_BUTTON,
+	"2": MouseButton.RIGHT_BUTTON,
+	"3": MouseButton.XBUTTON1_BUTTON,
+	"4": MouseButton.XBUTTON2_BUTTON,
+};
\ No newline at end of file