diff --git a/launch/launch/actions/include_launch_description.py b/launch/launch/actions/include_launch_description.py
index b2b095e35..901fccb4e 100644
--- a/launch/launch/actions/include_launch_description.py
+++ b/launch/launch/actions/include_launch_description.py
@@ -64,7 +64,7 @@ def __init__(
         *,
         launch_arguments: Optional[
             Iterable[Tuple[SomeSubstitutionsType, SomeSubstitutionsType]]
-        ] = None,
+        ] = None
     ) -> None:
         """Constructor."""
         super().__init__()
diff --git a/launch/launch/substitutions/launch_configuration.py b/launch/launch/substitutions/launch_configuration.py
index 67ac887c6..98371fe67 100644
--- a/launch/launch/substitutions/launch_configuration.py
+++ b/launch/launch/substitutions/launch_configuration.py
@@ -36,7 +36,7 @@ def __init__(
         self,
         variable_name: SomeSubstitutionsType,
         *,
-        default: Optional[Union[Any, Iterable[Any]]] = None,
+        default: Optional[Union[Any, Iterable[Any]]] = None
     ) -> None:
         """Constructor."""
         super().__init__()