diff --git a/lib/legacy/polymer-fn.html b/lib/legacy/polymer-fn.html
index b3562f0780..579b3688cf 100644
--- a/lib/legacy/polymer-fn.html
+++ b/lib/legacy/polymer-fn.html
@@ -24,6 +24,7 @@
      *
      * See `Polymer.Class` for details on valid legacy metadata format for `info`.
      *
+     * @global
      * @override
      * @function Polymer
      * @param {!PolymerInit} info Object containing Polymer metadata and functions