diff --git a/tests/typecode/test_contenttype.py b/tests/typecode/test_contenttype.py
index 0ee7ac16101..e06aa6a90b6 100644
--- a/tests/typecode/test_contenttype.py
+++ b/tests/typecode/test_contenttype.py
@@ -286,7 +286,7 @@ def test_awk_file(self):
         test_file = self.get_test_loc('contenttype/script/chem.awk')
         assert is_text(test_file)
         assert is_script(test_file)
-        assert not is_source(test_file)
+        assert is_source(test_file)
 
     def test_win_dll(self):
         test_file = self.get_test_loc('contenttype/binary/windows.dll')