diff --git a/dave_demos/launch/model_in_empty_world.launch.py b/dave_demos/launch/model_in_empty_world.launch.py
index fee6c278..2c31c9a8 100755
--- a/dave_demos/launch/model_in_empty_world.launch.py
+++ b/dave_demos/launch/model_in_empty_world.launch.py
@@ -1,9 +1,6 @@
 from launch import LaunchDescription
 from launch.actions import DeclareLaunchArgument, IncludeLaunchDescription
-from launch.substitutions import (
-    LaunchConfiguration,
-    PathJoinSubstitution
-    )
+from launch.substitutions import LaunchConfiguration, PathJoinSubstitution
 from launch.launch_description_sources import PythonLaunchDescriptionSource
 from launch.conditions import IfCondition
 from launch_ros.substitutions import FindPackageShare
diff --git a/dave_model_description/CMakeLists.txt b/dave_model_description/CMakeLists.txt
index fc960446..9a6c8f25 100644
--- a/dave_model_description/CMakeLists.txt
+++ b/dave_model_description/CMakeLists.txt
@@ -8,6 +8,7 @@ install(
   DESTINATION share/dave_model_description
 )
 
-ament_environment_hooks("${CMAKE_CURRENT_SOURCE_DIR}/hooks/${PROJECT_NAME}.dsv.in")
+ament_environment_hooks(
+  "${CMAKE_CURRENT_SOURCE_DIR}/hooks/${PROJECT_NAME}.dsv.in")
 
 ament_package()