diff --git a/src/components/structures/LeftPanel.tsx b/src/components/structures/LeftPanel.tsx
index 5b6b9c3717..af22db1350 100644
--- a/src/components/structures/LeftPanel.tsx
+++ b/src/components/structures/LeftPanel.tsx
@@ -439,6 +439,7 @@ export default class LeftPanel extends React.Component<IProps, IState> {
             onBlur={this.onBlur}
             isMinimized={this.props.isMinimized}
             activeSpace={this.state.activeSpace}
+            onResize={this.refreshStickyHeaders}
             onListCollapse={this.refreshStickyHeaders}
         />;
 
diff --git a/src/components/views/rooms/RoomList.tsx b/src/components/views/rooms/RoomList.tsx
index 8b36341ed0..5a1c3a24b3 100644
--- a/src/components/views/rooms/RoomList.tsx
+++ b/src/components/views/rooms/RoomList.tsx
@@ -55,6 +55,7 @@ interface IProps {
     onKeyDown: (ev: React.KeyboardEvent) => void;
     onFocus: (ev: React.FocusEvent) => void;
     onBlur: (ev: React.FocusEvent) => void;
+    onResize: () => void;
     onListCollapse?: (isExpanded: boolean) => void;
     resizeNotifier: ResizeNotifier;
     isMinimized: boolean;
@@ -404,7 +405,9 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
             const newSublists = objectWithOnly(newLists, newListIds);
             const sublists = objectShallowClone(newSublists, (k, v) => arrayFastClone(v));
 
-            this.setState({sublists, isNameFiltering});
+            this.setState({sublists, isNameFiltering}, () => {
+                this.props.onResize();
+            });
         }
     };