diff --git a/app-box/app-box.html b/app-box/app-box.html
index 4df7fb88..2d38721d 100644
--- a/app-box/app-box.html
+++ b/app-box/app-box.html
@@ -119,7 +119,7 @@ <h2>Sub title</h2>
         'iron-resize': '_resizeHandler'
       },
 
-      isAttached: function() {
+      attached: function() {
         this.resetLayout();
       },