diff --git a/ngStorage.js b/ngStorage.js
index 0bbdb69..4301bc7 100644
--- a/ngStorage.js
+++ b/ngStorage.js
@@ -179,7 +179,9 @@
                                 temp$storage = angular.copy(_last$storage);
                                 angular.forEach($storage, function(v, k) {
                                     if (angular.isDefined(v) && '$' !== k[0]) {
-                                        webStorage.setItem(storageKeyPrefix + k, serializer(v));
+                                        if (!angular.equals(v, _last$storage[k])) {
+                                            webStorage.setItem(storageKeyPrefix + k, serializer(v));
+                                        }
                                         delete temp$storage[k];
                                     }
                                 });