diff --git a/polygerrit-ui/app/behaviors/gr-tooltip-behavior/gr-tooltip-behavior_test.html b/polygerrit-ui/app/behaviors/gr-tooltip-behavior/gr-tooltip-behavior_test.html
index 2d7b6a2ce6..99bfc03f59 100644
--- a/polygerrit-ui/app/behaviors/gr-tooltip-behavior/gr-tooltip-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-tooltip-behavior/gr-tooltip-behavior_test.html
@@ -23,6 +23,8 @@ limitations under the License.
 <link rel="import" href="../../bower_components/iron-test-helpers/iron-test-helpers.html">
 <link rel="import" href="gr-tooltip-behavior.html">
 
+<script>void(0);</script>
+
 <test-fixture id="basic">
   <template>
     <tooltip-behavior-element></tooltip-behavior-element>