diff --git a/support/testing/tests/utils/test_check_package.py b/support/testing/tests/utils/test_check_package.py
index ce1998753c..580ad56d42 100644
--- a/support/testing/tests/utils/test_check_package.py
+++ b/support/testing/tests/utils/test_check_package.py
@@ -230,5 +230,6 @@ class TestCheckPackage(unittest.TestCase):
         self.assert_warnings_generated_for_file(m)
         self.assertIn("{}:0: Indent was expected to fail, did you fixed the file and forgot to update .checkpackageignore_outdated?"
                       .format(subdir_file), w)
-        self.assertIn("{}:0: NewlineAtEof was expected to fail, did you fixed the file and forgot to update .checkpackageignore_outdated?"
+        self.assertIn("{}:0: NewlineAtEof was expected to fail, did you fixed the file and forgot to update "
+                      ".checkpackageignore_outdated?"
                       .format(subdir_file), w)