--- a/testing/firefox-ui/harness/firefox_ui_harness/decorators.py
+++ b/testing/firefox-ui/harness/firefox_ui_harness/decorators.py
@@ -1,14 +1,11 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this file,
 # You can obtain one at http://mozilla.org/MPL/2.0/.
 
 from marionette import SkipTest
 import os
 
-
-def skip_under_xvfb(target):
-    def wrapper(self, *args, **kwargs):
-        if os.environ.get('MOZ_XVFB'):
-            raise SkipTest("Skipping due to running under xvfb")
-        return target(self, *args, **kwargs)
-    return wrapper
+def wrapper(self, *args, **kwargs):
+    if os.environ.get('MOZ_XVFB'):
+        raise SkipTest("Skipping due to running under xvfb")
+return wrapper