diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 6ba4d7f64..5445840ff 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -13155,6 +13155,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly upload: XMLHttpRequestUpload;
     withCredentials: boolean;
     msCaching?: string;
+    readonly responseURL: string;
     abort(): void;
     getAllResponseHeaders(): string;
     getResponseHeader(header: string): string | null;
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
index f1d40bf9b..4b35367b6 100644
--- a/baselines/webworker.generated.d.ts
+++ b/baselines/webworker.generated.d.ts
@@ -740,6 +740,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly upload: XMLHttpRequestUpload;
     withCredentials: boolean;
     msCaching?: string;
+    readonly responseURL: string;
     abort(): void;
     getAllResponseHeaders(): string;
     getResponseHeader(header: string): string | null;
diff --git a/inputfiles/addedTypes.json b/inputfiles/addedTypes.json
index cc49ff4b4..44a983fcf 100644
--- a/inputfiles/addedTypes.json
+++ b/inputfiles/addedTypes.json
@@ -1187,5 +1187,12 @@
         "interface": "History",
         "name": "scrollRestoration",
         "type": "ScrollRestoration"
+    },
+    {
+        "kind": "property",
+        "interface": "XMLHttpRequest",
+        "readonly": true,
+        "name": "responseURL",
+        "type": "string"
     }
 ]