diff --git a/lib/google/api_client/auth/file_storage.rb b/lib/google/api_client/auth/file_storage.rb
index d19927ab6..b08615b18 100644
--- a/lib/google/api_client/auth/file_storage.rb
+++ b/lib/google/api_client/auth/file_storage.rb
@@ -35,7 +35,7 @@ module Google
       # @param [String] path
       #    Path to the credentials file.
       def initialize(path)
-        @path = path
+        self.path= path
         self.load_credentials
       end