diff --git a/client/src/app/menu/menu.component.ts b/client/src/app/menu/menu.component.ts
index 50ff0e2b3..ed20d9c01 100644
--- a/client/src/app/menu/menu.component.ts
+++ b/client/src/app/menu/menu.component.ts
@@ -228,7 +228,7 @@ export class MenuComponent implements OnInit {
 
     // Close dropdown when window scroll to avoid dropdown quick jump for re-position
     const onWindowScroll = () => {
-      this.dropdown.close()
+      this.dropdown?.close()
       window.removeEventListener('scroll', onWindowScroll)
     }