diff --git a/test/test_persistent_dict.py b/test/test_persistent_dict.py
index 065f9796517d954d26a4da07cac20b74da0d24d4..d6fbbc73d557db1842a1ce86e4d05ee7e1ee4e4d 100644
--- a/test/test_persistent_dict.py
+++ b/test/test_persistent_dict.py
@@ -250,7 +250,6 @@ def test_write_once_persistent_dict_cache_collisions():
 
         key1 = PDictTestingKeyOrValue(1, hash_key=0)
         key2 = PDictTestingKeyOrValue(2, hash_key=0)
-        
         pdict[key1] = 1
 
         with pytest.warns(UserWarning):