diff --git a/src/service/translate.js b/src/service/translate.js
index <HASH>..<HASH> 100644
--- a/src/service/translate.js
+++ b/src/service/translate.js
@@ -532,6 +532,7 @@ function $translate($STORAGE_KEY, $windowProvider, $translateSanitizationProvide
       return $storageKey;
     }
     $storageKey = key;
+    return this;
   };
 
   this.storageKey = storageKey;
fix(service): make provider's storageKey chainable

Solves #<I>