diff --git a/lib/ui/src/components/preview/iframe.js b/lib/ui/src/components/preview/iframe.js
index 7acbe5f70cf6..11762b2fd651 100644
--- a/lib/ui/src/components/preview/iframe.js
+++ b/lib/ui/src/components/preview/iframe.js
@@ -12,8 +12,8 @@ export class IFrame extends Component {
   }
 
   shouldComponentUpdate(nextProps) {
-    const { scale } = this.props;
-    return scale !== nextProps.scale;
+    const { scale, src } = this.props;
+    return scale !== nextProps.scale || src !== nextProps.src;
   }
 
   componentDidUpdate(prevProps) {