diff --git a/src/components/structures/RoomView.js b/src/components/structures/RoomView.js
index 1ecd7dad2e..dd8fba3929 100644
--- a/src/components/structures/RoomView.js
+++ b/src/components/structures/RoomView.js
@@ -729,8 +729,8 @@ module.exports = React.createClass({
             return;
         }
 
-        const joinedMembers = room.currentState.getMembers().filter((m) => m.membership === "join" || m.membership === "invite");
-        this.setState({isAlone: joinedMembers.length === 1});
+        const joinedOrInvitedMemberCount = room.getJoinedMemberCount() + room.getInvitedMemberCount();
+        this.setState({isAlone: joinedOrInvitedMemberCount === 1});
     },
 
     _updateConfCallNotification: function() {