diff --git a/layout/style/MediaQueryList.cpp b/layout/style/MediaQueryList.cpp
index b5207afce24e..1a5e6bfdf34d 100644
--- a/layout/style/MediaQueryList.cpp
+++ b/layout/style/MediaQueryList.cpp
@@ -325,7 +325,12 @@ AddEventListener
 ONCHANGE_STRING
 aListener
 options
-false
+Nullable
+<
+bool
+>
+(
+)
 aRv
 )
 ;
diff --git a/testing/web-platform/meta/css/cssom-view/MediaQueryList-extends-EventTarget-interop.html.ini b/testing/web-platform/meta/css/cssom-view/MediaQueryList-extends-EventTarget-interop.html.ini
new file mode 100644
index 000000000000..a651ae930dbc
--- /dev/null
+++ b/testing/web-platform/meta/css/cssom-view/MediaQueryList-extends-EventTarget-interop.html.ini
@@ -0,0 +1,27 @@
+[
+MediaQueryList
+-
+extends
+-
+EventTarget
+-
+interop
+.
+html
+]
+[
+listeners
+are
+called
+in
+order
+they
+were
+added
+ignoring
+capture
+parameter
+]
+expected
+:
+FAIL