diff --git a/tests/wpt/metadata/XMLHttpRequest/event-timeout.htm.ini b/tests/wpt/metadata/XMLHttpRequest/event-timeout.htm.ini
new file mode 100644
index 00000000000..dfdef29ac51
--- /dev/null
+++ b/tests/wpt/metadata/XMLHttpRequest/event-timeout.htm.ini
@@ -0,0 +1,4 @@
+[event-timeout.htm]
+  type: testharness
+  disabled: issue 3396
+