1 files changed, 1 insertions, 1 deletions
diff --git a/dom/events/test/test_use_split_keypress_event_model_on_old_Confluence.html b/dom/events/test/test_use_split_keypress_event_model_on_old_Confluence.html
index 3898584b0a..43d8081606 100644
--- a/dom/events/test/test_use_split_keypress_event_model_on_old_Confluence.html
+++ b/dom/events/test/test_use_split_keypress_event_model_on_old_Confluence.html
@@ -39,7 +39,7 @@ SimpleTest.waitForExplicitFinish();
 SimpleTest.waitForFocus(async function doTests() {
   let iframe = document.getElementById("iframe");
   let waitForCheckKeyPressEventModelEvent = new Promise(resolve => {
-    SpecialPowers.addSystemEventListener(iframe.contentDocument, "CheckKeyPressEventModel", resolve, {once: true});
+    SpecialPowers.wrap(iframe.contentDocument).addEventListener("CheckKeyPressEventModel", resolve, {mozSystemGroup: true, once: true});
   });
   iframe.contentDocument.body.setAttribute("contenteditable", "true");
   await waitForCheckKeyPressEventModelEvent;