diff --git a/hyper-schema.json b/hyper-schema.json
index b633bd50..a3512a27 100644
--- a/hyper-schema.json
+++ b/hyper-schema.json
@@ -50,77 +50,89 @@
                     "allOf": [ { "$ref": "#" } ]
                 }
             }
-        }
-    },
-    "allOf": [ { "$ref": "http://json-schema.org/draft/schema#" } ],
-    "properties": {
-        "additionalItems": {
-            "anyOf": [
-                { "type": "boolean" },
-                { "$ref": "#" }
-            ]
-        },
-        "additionalProperties": {
-            "anyOf": [
-                { "type": "boolean" },
-                { "$ref": "#" }
-            ]
-        },
-        "dependencies": {
-            "additionalProperties": {
-                "anyOf": [
-                    { "$ref": "#" },
-                    { "type": "array" }
-                ]
-            }
-        },
-        "items": {
-            "anyOf": [
-                { "$ref": "#" },
-                { "$ref": "#/definitions/schemaArray" }
-            ]
-        },
-        "definitions": {
-            "additionalProperties": { "$ref": "#" }
-        },
-        "patternProperties": {
-            "additionalProperties": { "$ref": "#" }
-        },
-        "properties": {
-            "additionalProperties": { "$ref": "#" }
         },
-        "allOf": { "$ref": "#/definitions/schemaArray" },
-        "anyOf": { "$ref": "#/definitions/schemaArray" },
-        "oneOf": { "$ref": "#/definitions/schemaArray" },
-        "not": { "$ref": "#" },
-
-        "base": {
-            "description": "URI Template resolved as for the 'href' keyword in the Link Description Object.  The resulting URI Reference is resolved against the current URI base and sets the new URI base for URI references within the instance.",
-            "type": "string"
-        },
-        "links": {
-            "type": "array",
-            "items": { "$ref": "#/definitions/linkDescription" }
-        },
-        "media": {
-            "type": "object",
+        "hyperSchema": {
+            "allOf": [ { "$ref": "http://json-schema.org/draft/schema#/definitions/schema" } ],
             "properties": {
-                "type": {
-                    "description": "A media type, as described in RFC 2046",
-                    "type": "string"
+                "additionalItems": {
+                    "anyOf": [
+                        { "type": "boolean" },
+                        { "$ref": "#" }
+                    ]
+                },
+                "additionalProperties": {
+                    "anyOf": [
+                        { "type": "boolean" },
+                        { "$ref": "#" }
+                    ]
+                },
+                "dependencies": {
+                    "additionalProperties": {
+                        "anyOf": [
+                            { "$ref": "#" },
+                            { "type": "array" }
+                        ]
+                    }
+                },
+                "items": {
+                    "anyOf": [
+                        { "$ref": "#" },
+                        { "$ref": "#/definitions/schemaArray" }
+                    ]
                 },
-                "binaryEncoding": {
-                    "description": "A content encoding scheme, as described in RFC 2045",
+                "definitions": {
+                    "additionalProperties": { "$ref": "#" }
+                },
+                "patternProperties": {
+                    "additionalProperties": { "$ref": "#" }
+                },
+                "properties": {
+                    "additionalProperties": { "$ref": "#" }
+                },
+                "allOf": { "$ref": "#/definitions/schemaArray" },
+                "anyOf": { "$ref": "#/definitions/schemaArray" },
+                "oneOf": { "$ref": "#/definitions/schemaArray" },
+                "not": { "$ref": "#" },
+
+                "base": {
+                    "description": "URI Template resolved as for the 'href' keyword in the Link Description Object.  The resulting URI Reference is resolved against the current URI base and sets the new URI base for URI references within the instance.",
                     "type": "string"
+                },
+                "links": {
+                    "type": "array",
+                    "items": { "$ref": "#/definitions/linkDescription" }
+                },
+                "media": {
+                    "type": "object",
+                    "properties": {
+                        "type": {
+                            "description": "A media type, as described in RFC 2046",
+                            "type": "string"
+                        },
+                        "binaryEncoding": {
+                            "description": "A content encoding scheme, as described in RFC 2045",
+                            "type": "string"
+                        }
+                    }
+                },
+                "readOnly": {
+                    "description": "If true, indicates that the value of this property is controlled by the server.",
+                    "type": "boolean",
+                    "default": "false"
                 }
             }
-        },
-        "readOnly": {
-            "description": "If true, indicates that the value of this property is controlled by the server.",
-            "type": "boolean",
-            "default": "false"
         }
     },
+    "oneOf": [
+        {
+            "allOf": [
+                { "$ref": "#/definitions/hyperSchema" },
+                { "$ref": "http://json-schema.org/drafts/schema#/definitions/notJsonReference" }
+            ]
+        },
+        { "$ref": "http://json-schema.org/drafts/schema#/definitions/jsonReference" }
+    ],
+    "default": {},
     "links": [
         {
             "rel": "self",
diff --git a/schema.json b/schema.json
index d8b63548..f1fb8b58 100644
--- a/schema.json
+++ b/schema.json
@@ -3,6 +3,21 @@
     "id": "http://json-schema.org/draft/schema#",
     "title": "Core schema meta-schema",
     "definitions": {
+        "jsonReference": {
+            "type": "object",
+            "properties": {
+                "$ref": {
+                    "type": "string",
+                    "format": "uriref"
+                }
+            },
+            "required": [ "$ref" ]
+        },
+        "notJsonReference": {
+            "not": {
+                "required": [ "$ref" ]
+            }
+        },
         "schemaArray": {
             "type": "array",
             "minItems": 1,
@@ -33,132 +48,131 @@
             "type": "array",
             "items": { "type": "string" },
             "uniqueItems": true
-        }
-    },
-    "type": "object",
-    "properties": {
-        "id": {
-            "type": "string",
-            "format": "uriref"
-        },
-        "$schema": {
-            "type": "string",
-            "format": "uri"
-        },
-        "title": {
-            "type": "string"
-        },
-        "description": {
-            "type": "string"
-        },
-        "default": {},
-        "multipleOf": {
-            "type": "number",
-            "minimum": 0,
-            "exclusiveMinimum": true
-        },
-        "maximum": {
-            "type": "number"
-        },
-        "exclusiveMaximum": {
-            "type": "boolean",
-            "default": false
-        },
-        "minimum": {
-            "type": "number"
-        },
-        "exclusiveMinimum": {
-            "type": "boolean",
-            "default": false
-        },
-        "maxLength": { "$ref": "#/definitions/positiveInteger" },
-        "minLength": { "$ref": "#/definitions/positiveIntegerDefault0" },
-        "pattern": {
-            "type": "string",
-            "format": "regex"
-        },
-        "additionalItems": {
-            "anyOf": [
-                { "type": "boolean" },
-                { "$ref": "#" }
-            ],
-            "default": {}
-        },
-        "items": {
-            "anyOf": [
-                { "$ref": "#" },
-                { "$ref": "#/definitions/schemaArray" }
-            ],
-            "default": {}
-        },
-        "maxItems": { "$ref": "#/definitions/positiveInteger" },
-        "minItems": { "$ref": "#/definitions/positiveIntegerDefault0" },
-        "uniqueItems": {
-            "type": "boolean",
-            "default": false
-        },
-        "contains": { "$ref": "#" },
-        "maxProperties": { "$ref": "#/definitions/positiveInteger" },
-        "minProperties": { "$ref": "#/definitions/positiveIntegerDefault0" },
-        "required": { "$ref": "#/definitions/stringArray" },
-        "additionalProperties": {
-            "anyOf": [
-                { "type": "boolean" },
-                { "$ref": "#" }
-            ],
-            "default": {}
-        },
-        "definitions": {
-            "type": "object",
-            "additionalProperties": { "$ref": "#" },
-            "default": {}
-        },
-        "properties": {
-            "type": "object",
-            "additionalProperties": { "$ref": "#" },
-            "default": {}
-        },
-        "patternProperties": {
-            "type": "object",
-            "additionalProperties": { "$ref": "#" },
-            "default": {}
-        },
-        "dependencies": {
-            "type": "object",
-            "additionalProperties": {
-                "anyOf": [
-                    { "$ref": "#" },
-                    { "$ref": "#/definitions/stringArray" }
-                ]
-            }
-        },
-        "propertyNames": { "$ref": "#" },
-        "const": {},
-        "enum": {
-            "type": "array",
-            "minItems": 1,
-            "uniqueItems": true
         },
-        "type": {
-            "anyOf": [
-                { "$ref": "#/definitions/simpleTypes" },
-                {
+        "schema": {
+            "type": ["object", "boolean"],
+            "properties": {
+                "id": {
+                    "type": "string",
+                    "format": "uriref"
+                },
+                "$schema": {
+                    "type": "string",
+                    "format": "uri"
+                },
+                "title": {
+                    "type": "string"
+                },
+                "description": {
+                    "type": "string"
+                },
+                "default": {},
+                "multipleOf": {
+                    "type": "number",
+                    "minimum": 0,
+                    "exclusiveMinimum": true
+                },
+                "maximum": {
+                    "type": "number"
+                },
+                "exclusiveMaximum": {
+                    "type": "boolean",
+                    "default": false
+                },
+                "minimum": {
+                    "type": "number"
+                },
+                "exclusiveMinimum": {
+                    "type": "boolean",
+                    "default": false
+                },
+                "maxLength": { "$ref": "#/definitions/positiveInteger" },
+                "minLength": { "$ref": "#/definitions/positiveIntegerDefault0" },
+                "pattern": {
+                    "type": "string",
+                    "format": "regex"
+                },
+                "additionalItems": { "$ref": "#" },
+                "items": {
+                    "anyOf": [
+                        { "$ref": "#" },
+                        { "$ref": "#/definitions/schemaArray" }
+                    ],
+                    "default": {}
+                },
+                "maxItems": { "$ref": "#/definitions/positiveInteger" },
+                "minItems": { "$ref": "#/definitions/positiveIntegerDefault0" },
+                "uniqueItems": {
+                    "type": "boolean",
+                    "default": false
+                },
+                "contains": { "$ref": "#" },
+                "maxProperties": { "$ref": "#/definitions/positiveInteger" },
+                "minProperties": { "$ref": "#/definitions/positiveIntegerDefault0" },
+                "required": { "$ref": "#/definitions/stringArray" },
+                "additionalProperties": { "$ref": "#" },
+                "definitions": {
+                    "type": "object",
+                    "additionalProperties": { "$ref": "#" },
+                    "default": {}
+                },
+                "properties": {
+                    "type": "object",
+                    "additionalProperties": { "$ref": "#" },
+                    "default": {}
+                },
+                "patternProperties": {
+                    "type": "object",
+                    "additionalProperties": { "$ref": "#" },
+                    "default": {}
+                },
+                "dependencies": {
+                    "type": "object",
+                    "additionalProperties": {
+                        "anyOf": [
+                            { "$ref": "#" },
+                            { "$ref": "#/definitions/stringArray" }
+                        ]
+                    }
+                },
+                "propertyNames": { "$ref": "#" },
+                "const": {},
+                "enum": {
                     "type": "array",
-                    "items": { "$ref": "#/definitions/simpleTypes" },
                     "minItems": 1,
                     "uniqueItems": true
-                }
+                },
+                "type": {
+                    "anyOf": [
+                        { "$ref": "#/definitions/simpleTypes" },
+                        {
+                            "type": "array",
+                            "items": { "$ref": "#/definitions/simpleTypes" },
+                            "minItems": 1,
+                            "uniqueItems": true
+                        }
+                    ]
+                },
+                "format": { "type": "string" },
+                "allOf": { "$ref": "#/definitions/schemaArray" },
+                "anyOf": { "$ref": "#/definitions/schemaArray" },
+                "oneOf": { "$ref": "#/definitions/schemaArray" },
+                "not": { "$ref": "#" }
+            },
+            "dependencies": {
+                "exclusiveMaximum": [ "maximum" ],
+                "exclusiveMinimum": [ "minimum" ]
+            }
+        }
+    },
+    "oneOf": [
+        {
+            "allOf": [
+                { "$ref": "#/definitions/schema" },
+                { "$ref": "#/definitions/notJsonReference" }
             ]
         },
-        "format": { "type": "string" },
-        "allOf": { "$ref": "#/definitions/schemaArray" },
-        "anyOf": { "$ref": "#/definitions/schemaArray" },
-        "oneOf": { "$ref": "#/definitions/schemaArray" },
-        "not": { "$ref": "#" }
-    },
-    "dependencies": {
-        "exclusiveMaximum": [ "maximum" ],
-        "exclusiveMinimum": [ "minimum" ]
-    },
+        { "$ref": "#/definitions/jsonReference" }
+    ],
     "default": {}
 }