diff --git a/src/js/util/notification.js b/src/js/util/notification.js
index 670d4cb..f719164 100644
--- a/src/js/util/notification.js
+++ b/src/js/util/notification.js
@@ -58,5 +58,7 @@ Notif.prototype.create = function(options) {
 };
 
 Notif.prototype.close = function(notification) {
-    notification.close();
+    if (notification) {
+        notification.close();
+    }
 };
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