diff --git a/tests/wpt/metadata/html/webappapis/scripting/event-loops/microtask_after_raf.html.ini b/tests/wpt/metadata/html/webappapis/scripting/event-loops/microtask_after_raf.html.ini
index a4a067521c4..9ebe79a9879 100644
--- a/tests/wpt/metadata/html/webappapis/scripting/event-loops/microtask_after_raf.html.ini
+++ b/tests/wpt/metadata/html/webappapis/scripting/event-loops/microtask_after_raf.html.ini
@@ -1,5 +1,6 @@
 [microtask_after_raf.html]
   type: testharness
+  disabled: https://github.com/servo/servo/issues/13501
   [Microtask execute immediately after script]
     expected: FAIL