diff --git a/dom/tests/mochitest/general/test_interfaces.html b/dom/tests/mochitest/general/test_interfaces.html
index 7ffdad80f12b..8f6943502355 100644
--- a/dom/tests/mochitest/general/test_interfaces.html
+++ b/dom/tests/mochitest/general/test_interfaces.html
@@ -1209,6 +1209,8 @@ var interfaceNamesInGlobalScope =
     {name: "VRDisplay", release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "VRDisplayCapabilities", release: false},
+// IMPORTANT: Do not change this list without review from a DOM peer!
+    {name: "VRDisplayEvent", release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "VREyeParameters", release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!