diff --git a/bigbluebutton-html5/imports/ui/components/dropdown/component.jsx b/bigbluebutton-html5/imports/ui/components/dropdown/component.jsx
index 7c844022d0f1bb576abfdde7615d1b7752f999e1..fb519b7669a4adf0b3b1cfad8e398219784c4081 100644
--- a/bigbluebutton-html5/imports/ui/components/dropdown/component.jsx
+++ b/bigbluebutton-html5/imports/ui/components/dropdown/component.jsx
@@ -114,7 +114,7 @@ class Dropdown extends Component {
     const { isOpen } = this.state;
     const triggerElement = findDOMNode(this.trigger);
     const contentElement = findDOMNode(this.content);
-    
+    if (!(triggerElement && contentElement)) return;
     if (keepOpen === null) {
       if (triggerElement.contains(event.target)) {
         return;