diff --git a/src/lib/dom.generated.d.ts b/src/lib/dom.generated.d.ts
index f1515ac85e6..f9f75763a39 100644
--- a/src/lib/dom.generated.d.ts
+++ b/src/lib/dom.generated.d.ts
@@ -9762,7 +9762,7 @@ interface ImageData {
 declare var ImageData: {
     prototype: ImageData;
     new(width: number, height: number): ImageData;
-    new(array: Uint8ClampedArray, width: number, height: number): ImageData;
+    new(array: Uint8ClampedArray, width: number, height?: number): ImageData;
 };
 
 interface InnerHTML {
diff --git a/src/lib/webworker.generated.d.ts b/src/lib/webworker.generated.d.ts
index b1f5773fc5f..0199e62b9df 100644
--- a/src/lib/webworker.generated.d.ts
+++ b/src/lib/webworker.generated.d.ts
@@ -2202,7 +2202,7 @@ interface ImageData {
 declare var ImageData: {
     prototype: ImageData;
     new(width: number, height: number): ImageData;
-    new(array: Uint8ClampedArray, width: number, height: number): ImageData;
+    new(array: Uint8ClampedArray, width: number, height?: number): ImageData;
 };
 
 /** This Channel Messaging API interface allows us to create a new message channel and send data through it via its two MessagePort properties. */