diff --git a/lib/mixins/gesture-event-listeners.html b/lib/mixins/gesture-event-listeners.html
index dcf163daef..2f1aa3a69d 100644
--- a/lib/mixins/gesture-event-listeners.html
+++ b/lib/mixins/gesture-event-listeners.html
@@ -8,6 +8,7 @@
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 <link rel="import" href="../utils/boot.html">
+<link rel="import" href="../utils/mixin.html">
 <link rel="import" href="../utils/gestures.html">
 
 <script>