diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 7b0b1bbf6..7a4a1ea2e 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -595,7 +595,7 @@ interface ImageEncodeOptions {
 }
 
 interface ImportMeta {
-    url?: string;
+    url: string;
 }
 
 interface InputEventInit extends UIEventInit {
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
index 09689a946..0a3423681 100644
--- a/baselines/webworker.generated.d.ts
+++ b/baselines/webworker.generated.d.ts
@@ -244,7 +244,7 @@ interface ImageEncodeOptions {
 }
 
 interface ImportMeta {
-    url?: string;
+    url: string;
 }
 
 interface JsonWebKey {
diff --git a/inputfiles/addedTypes.json b/inputfiles/addedTypes.json
index 65b358a25..7d5576b45 100644
--- a/inputfiles/addedTypes.json
+++ b/inputfiles/addedTypes.json
@@ -2301,7 +2301,8 @@
                     "member": {
                         "url": {
                             "name": "url",
-                            "type": "DOMString"
+                            "type": "DOMString",
+                            "required": 1
                         }
                     }
                 }