diff --git a/testing/web-platform/meta/dom/events/EventListener-invoke-legacy.html.ini b/testing/web-platform/meta/dom/events/EventListener-invoke-legacy.html.ini
new file mode 100644
index 000000000000..3d805ddeb7b6
--- /dev/null
+++ b/testing/web-platform/meta/dom/events/EventListener-invoke-legacy.html.ini
@@ -0,0 +1,3 @@
+[EventListener-invoke-legacy.html]
+  type: testharness
+  disabled: https://bugzilla.mozilla.org/show_bug.cgi?id=1351409
diff --git a/testing/web-platform/tests/dom/events/EventListener-invoke-legacy.html b/testing/web-platform/tests/dom/events/EventListener-invoke-legacy.html
index 9f120aad6d26..85a4b0a5fe64 100644
--- a/testing/web-platform/tests/dom/events/EventListener-invoke-legacy.html
+++ b/testing/web-platform/tests/dom/events/EventListener-invoke-legacy.html
@@ -62,10 +62,11 @@ function setupTransition(elem) {
 }
 
 function setupAnimation(elem) {
-  elem.style.animation = 'test 30ms';
+  elem.style.animation = 'test 30ms 2';
 }
 
 runLegacyEventTest('transitionend', 'webkitTransitionEnd', "TransitionEvent", setupTransition);
 runLegacyEventTest('animationend', 'webkitAnimationEnd', "AnimationEvent", setupAnimation);
+runLegacyEventTest('animationiteration', 'webkitAnimationIteration', "AnimationEvent", setupAnimation);
 runLegacyEventTest('animationstart', 'webkitAnimationStart', "AnimationEvent", setupAnimation);
 </script>