diff --git a/nb_cli/config/parser.py b/nb_cli/config/parser.py
index 7c00a87..dc85eb0 100644
--- a/nb_cli/config/parser.py
+++ b/nb_cli/config/parser.py
@@ -133,8 +133,7 @@ def remove_adapter(self, adapter: SimpleInfo) -> None:
                 ),
                 None,
             )
-            is not None
-        ):
+        ) is not None:
             del adapters[index]
         self._write_data(data)