diff -r b45522b1b2af -r 3d19cbe56fcb src/widgets/LatestAnnotation.js
--- a/src/widgets/LatestAnnotation.js	Fri Sep 18 15:04:39 2015 +0200
+++ b/src/widgets/LatestAnnotation.js	Fri Sep 18 15:08:36 2015 +0200
@@ -114,9 +114,11 @@
             _this.getWidgetAnnotations().forEach(function(_annotation){
                 _annotation.off("click");
                 _annotation.on("click", function(){
-                    _users = this.source.users_data.filter(function(_user_data){
-                        return _user_data.username == _annotation.creator
-                    })
+                    var _user = {},
+                        _user_display_string = "",
+                        _users = this.source.users_data.filter(function(_user_data){
+                            return _user_data.username == _annotation.creator
+                        });
                     if (_users.length == 0){
                         _user.username = _annotation.creator;
                     }