diff --git a/lib/pavilion/builder.py b/lib/pavilion/builder.py
index 837024c3d..49a4d37f4 100644
--- a/lib/pavilion/builder.py
+++ b/lib/pavilion/builder.py
@@ -252,7 +252,8 @@ def _create_build_hash(self) -> str:
                 hash_obj.update(self._hash_file(full_path))
             elif full_path.is_dir():
                 self._date_dir(full_path)
-                hash_obj.update(self._hash_dir(full_path, exclude=CONFIG_NAMES))
+                hash_obj.update(self._hash_dir(full_path,
+                    exclude=CONFIG_FNAMES))
             else:
                 raise TestBuilderError(
                     "Extra file '{}' must be a regular file or directory."