diff --git a/saqc/funcs/resampling.py b/saqc/funcs/resampling.py
index b74747e6e0fac453f5e86b8e3e9e5ac71d9e3a09..96b6ff7327d8c39b234a410f7ae9c7bb3ea4880d 100644
--- a/saqc/funcs/resampling.py
+++ b/saqc/funcs/resampling.py
@@ -438,7 +438,7 @@ def reindexFlags(
         "inverse_fshift",
         "inverse_bshift",
         "inverse_nshift",
-        "inverse_interpolation"
+        "inverse_interpolation",
     ],
     source: str,
     freq: Optional[str] = None,