diff --git a/js/src/common/components/Dropdown.js b/js/src/common/components/Dropdown.js
index bca00ac7f..f2b8c8c26 100644
--- a/js/src/common/components/Dropdown.js
+++ b/js/src/common/components/Dropdown.js
@@ -37,7 +37,7 @@ export default class Dropdown extends Component {
   }
 
   view(vnode) {
-    const items = vnode.children ? listItems(vnode.children) : [];
+    const items = vnode.children ? listItems(vnode.children) : null;
     const renderItems = this.attrs.lazyDraw ? this.showing : true;
 
     return (
diff --git a/js/src/forum/components/UsersSearchSource.tsx b/js/src/forum/components/UsersSearchSource.tsx
index 73e081b07..869b0efd5 100644
--- a/js/src/forum/components/UsersSearchSource.tsx
+++ b/js/src/forum/components/UsersSearchSource.tsx
@@ -39,7 +39,7 @@ export default class UsersSearchResults implements SearchSource {
       .filter((e, i, arr) => arr.lastIndexOf(e) === i)
       .sort((a, b) => a.displayName().localeCompare(b.displayName()));
 
-    if (!results.length) return [];
+    if (!results.length) return null;
 
     return [
       <li className="Dropdown-header">{app.translator.trans('core.forum.search.users_heading')}</li>,