diff --git a/js/tests/rhino-n.tests b/js/tests/rhino-n.tests
index 20208a8fa9c6..fb2eec1141dd 100644
--- a/js/tests/rhino-n.tests
+++ b/js/tests/rhino-n.tests
@@ -117,4 +117,7 @@ js1_5/Object/no-such-method.js
 #
 # Array extras (bug 290592 is spidermonkey only)
 js1_5/Array/array-002.js
-
+#
+# Invalid bug
+#
+e4x/Regress/regress-278112.js
diff --git a/js/tests/spidermonkey-n.tests b/js/tests/spidermonkey-n.tests
index 434c26e515a3..09824e9fb076 100755
--- a/js/tests/spidermonkey-n.tests
+++ b/js/tests/spidermonkey-n.tests
@@ -29,3 +29,8 @@ js1_5/Regress/regress-119719.js
 # 0 and ''
 #
 js1_5/Exceptions/regress-50447.js
+#
+# Invalid bug
+#
+e4x/Regress/regress-278112.js
+