diff --git a/devtools/client/animationinspector/test/browser_animation_timeline_shows_delay.js b/devtools/client/animationinspector/test/browser_animation_timeline_shows_delay.js
index b15c68499001..42c245083a8e 100644
--- a/devtools/client/animationinspector/test/browser_animation_timeline_shows_delay.js
+++ b/devtools/client/animationinspector/test/browser_animation_timeline_shows_delay.js
@@ -4,6 +4,8 @@
 
 "use strict";
 
+requestLongerTimeout(2);
+
 // Check that animation delay is visualized in the timeline when the animation
 // is delayed.
 // Also check that negative delays do not overflow the UI, and are shown like