diff --git a/web/packages/core/src/internal/player/ruffle-embed-element.ts b/web/packages/core/src/internal/player/ruffle-embed-element.ts
index c1590bf35cb9..f863ed043e01 100644
--- a/web/packages/core/src/internal/player/ruffle-embed-element.ts
+++ b/web/packages/core/src/internal/player/ruffle-embed-element.ts
@@ -76,7 +76,7 @@ export class RuffleEmbedElement extends RufflePlayerElement {
      * @internal
      */
     static override get observedAttributes(): string[] {
-        return ["src", "width", "height", "align"];
+        return [...RufflePlayerElement.observedAttributes, "src"];
     }
 
     /**