diff --git a/google-js-api.js b/google-js-api.js
index f4f6410..35405ac 100644
--- a/google-js-api.js
+++ b/google-js-api.js
@@ -30,6 +30,7 @@ Polymer({
 
   is: 'google-js-api',
 
+  /** @override */
   _template: null,
 
   behaviors: [
diff --git a/google-maps-api.js b/google-maps-api.js
index d06b8c6..023e28c 100644
--- a/google-maps-api.js
+++ b/google-maps-api.js
@@ -33,6 +33,7 @@ Polymer({
 
   is: 'google-maps-api',
 
+  /** @override */
   _template: null,
 
   behaviors: [