diff --git a/src/components/structures/MainSplit.js b/src/components/structures/MainSplit.js
index 6fd0274f1a..5c69ef6745 100644
--- a/src/components/structures/MainSplit.js
+++ b/src/components/structures/MainSplit.js
@@ -55,7 +55,7 @@ export default class MainSplit extends React.Component {
     }
 
     componentDidMount() {
-        if (this.props.panel && !this.collapsedRhs) {
+        if (this.props.panel && !this.props.collapsedRhs) {
             this._createResizer();
         }
     }