diff --git a/flopy/mf6/utils/codegen/dfn.py b/flopy/mf6/utils/codegen/dfn.py
index 7708c0588..667f31290 100644
--- a/flopy/mf6/utils/codegen/dfn.py
+++ b/flopy/mf6/utils/codegen/dfn.py
@@ -34,7 +34,7 @@ def _try_parse_bool(value):
     Try to parse a boolean from a string as represented
     in a DFN file, otherwise return the value unaltered.
     """
-    
+
     if isinstance(value, str):
         value = value.lower()
         if value in ["true", "false"]:
diff --git a/flopy/mf6/utils/codegen/shim.py b/flopy/mf6/utils/codegen/shim.py
index 07fc49cd5..4ca953552 100644
--- a/flopy/mf6/utils/codegen/shim.py
+++ b/flopy/mf6/utils/codegen/shim.py
@@ -492,7 +492,7 @@ def _super() -> Optional[str]:
             args = [
                 ctx["parent"]
                 if ctx.get("meta", dict()).get("ref", None)
-                else ctx['parent'],
+                else ctx["parent"],
                 f"'{ctx['name'].r}'",
                 "filename",
                 "pname",