diff --git a/webclient/components/matrix/matrix-filter.js b/webclient/components/matrix/matrix-filter.js
index 0922684e3..260e0827d 100644
--- a/webclient/components/matrix/matrix-filter.js
+++ b/webclient/components/matrix/matrix-filter.js
@@ -120,7 +120,9 @@ angular.module('matrixFilter', [])
             var room = $rootScope.events.rooms[room_id];
             if (room && (user_id in room.members)) {
                 var member = room.members[user_id];
-                displayName = member.content.displayname;
+                if (member.content.displayname) {
+                    displayName = member.content.displayname;
+                }
             }
         }