--- a/devtools/client/animationinspector/test/browser_animation_refresh_on_added_animation.js
+++ b/devtools/client/animationinspector/test/browser_animation_refresh_on_added_animation.js
@@ -1,14 +1,16 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
+requestLongerTimeout(2);
+
 // Test that the panel content refreshes when new animations are added.
 
 add_task(function*() {
   yield addTab(TEST_URL_ROOT + "doc_simple_animation.html");
   let {inspector, panel} = yield openAnimationInspector();
 
   info("Select a non animated node");
   yield selectNode(".still", inspector);
@@ -37,9 +39,9 @@ add_task(function*() {
 function* changeElementAndWait(options, panel, inspector) {
   let onPanelUpdated = panel.once(panel.UI_UPDATED_EVENT);
   let onInspectorUpdated = inspector.once("inspector-updated");
 
   yield executeInContent("devtools:test:setAttribute", options);
 
   yield promise.all([
     onInspectorUpdated, onPanelUpdated, waitForAllAnimationTargets(panel)]);
-}
\ No newline at end of file
+}