diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 4bcfa348648..5283e0ae9cb 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -26620,7 +26620,7 @@
    "testharness"
   ], 
   "mozilla/animation-removed-node.html": [
-   "6ba0318ea1e07b42ef444f838753adbefe9633d6", 
+   "a2f9dfe284a22a6241290c86841172387dcdbeb6", 
    "testharness"
   ], 
   "mozilla/binding_keyword.html": [
diff --git a/tests/wpt/mozilla/tests/mozilla/animation-removed-node.html b/tests/wpt/mozilla/tests/mozilla/animation-removed-node.html
index 6ba0318ea1e..a2f9dfe284a 100644
--- a/tests/wpt/mozilla/tests/mozilla/animation-removed-node.html
+++ b/tests/wpt/mozilla/tests/mozilla/animation-removed-node.html
@@ -19,9 +19,11 @@ div.test { animation: boo 1s infinite; }
       document.getElementById('second').style.display = 'none';
       // Ensure that we wait until the next layout is complete.
       requestAnimationFrame(t.step_func(function() {
-        // Verify that the previous animations are no longer considered active.
-        assert_equals(window.runningAnimationCount, 0);
-        t.done();
+        requestAnimationFrame(t.step_func(function() {
+          // Verify that the previous animations are no longer considered active.
+          assert_equals(window.runningAnimationCount, 0);
+          t.done();
+        });
       }));
     });
   }, "Animations are no longer active when a node can't be animated.");