diff --git a/app/client/src/widgets/withLazyRender.tsx b/app/client/src/widgets/withLazyRender.tsx
index a1e099cee6..3fb04a2513 100644
--- a/app/client/src/widgets/withLazyRender.tsx
+++ b/app/client/src/widgets/withLazyRender.tsx
@@ -55,7 +55,7 @@ export function withLazyRender(Widget: typeof BaseWidget) {
 
       return () => {
         (window as any).cancelIdleCallback(idleCallbackId);
-        observer.disconnect();
+        observer && observer.disconnect();
       };
     }, []);