diff --git a/python/licenseck.py b/python/licenseck.py
index 0b2f6700c82..c904833ea8e 100644
--- a/python/licenseck.py
+++ b/python/licenseck.py
@@ -23,6 +23,14 @@ licenses = [
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 """,
 
+"""\
+#!/usr/bin/env python
+
+# 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/.
+""",
+
 """\
 // 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
diff --git a/python/tidy.py b/python/tidy.py
index cb20dff1646..4d24b2163cb 100644
--- a/python/tidy.py
+++ b/python/tidy.py
@@ -14,7 +14,7 @@ import fnmatch
 import itertools
 from licenseck import licenses
 
-directories_to_check = ["ports", "components"]
+directories_to_check = ["ports", "components", "tests"]
 filetypes_to_check = [".rs", ".rc", ".cpp", ".c", ".h", ".py"]
 reftest_directories = ["tests/ref"]
 reftest_filetype = ".list"
@@ -22,7 +22,7 @@ reftest_filetype = ".list"
 ignored_files = [
     # Upstream
     "support/*",
-    "tests/wpt/web-platform-tests/*",
+    "tests/wpt/*",
 
     # Generated and upstream code combined with our own. Could use cleanup
     "components/script/dom/bindings/codegen/*",