diff --git a/pelican/tests/test_settings.py b/pelican/tests/test_settings.py
index d995527c..f00a37d8 100644
--- a/pelican/tests/test_settings.py
+++ b/pelican/tests/test_settings.py
@@ -44,6 +44,7 @@ class TestSettingsConfiguration(unittest.TestCase):
     def test_dont_copy_small_keys(self):
         # Do not copy keys not in caps.
         self.assertNotIn('foobar', self.settings)
+        self.assertNotIn('f00Bar', self.settings)
 
     def test_read_empty_settings(self):
         # Ensure an empty settings file results in default settings.