diff --git a/src/components/structures/RoomView.js b/src/components/structures/RoomView.js
index 7f5b605acb..97e575ff4e 100644
--- a/src/components/structures/RoomView.js
+++ b/src/components/structures/RoomView.js
@@ -675,6 +675,7 @@ module.exports = React.createClass({
         }
 
         this._updateRoomMembers();
+        this._checkIfAlone(this.state.room);
     },
 
     onRoomMemberMembership: function(ev, member, oldMembership) {