diff --git a/src/courseware/course/sequence/Unit/hooks/useIFrameBehavior.js b/src/courseware/course/sequence/Unit/hooks/useIFrameBehavior.js
index b41cec0b5f..151a3e7592 100644
--- a/src/courseware/course/sequence/Unit/hooks/useIFrameBehavior.js
+++ b/src/courseware/course/sequence/Unit/hooks/useIFrameBehavior.js
@@ -105,6 +105,11 @@ const useIFrameBehavior = ({
     };
   };
 
+  React.useEffect(() => {
+    setIframeHeight(0);
+    setHasLoaded(false);
+  }, [iframeUrl]);
+
   return {
     iframeHeight,
     handleIFrameLoad,