diff --git a/tests/test_6_main.py b/tests/test_6_main.py
index 79cee89..8e3a9c8 100644
--- a/tests/test_6_main.py
+++ b/tests/test_6_main.py
@@ -292,7 +292,8 @@ def get_value(self, res: SafeJSON) -> BibtexEntry:
             "--overwrite",
             "booktitle",
             "--overwrite=journal",
-            "-pw=month",
+            "-pw",
+            "month",
         ]
         + ["-w=" + field for field in SELECTION2],
         [("overwrite-selection-prefix.btac.bib.exp", "input.btac.bib")],