diff --git a/launch/receiver.launch.py b/launch/receiver.launch.py
index 089ae70..e8390b1 100644
--- a/launch/receiver.launch.py
+++ b/launch/receiver.launch.py
@@ -40,7 +40,6 @@
 from lifecycle_msgs.msg import Transition
 
 
-
 def generate_launch_description():
     namespace = LaunchConfiguration('namespace')
     interface = LaunchConfiguration('interface')
diff --git a/launch/sender.launch.py b/launch/sender.launch.py
index 1d850d0..e2aadfc 100644
--- a/launch/sender.launch.py
+++ b/launch/sender.launch.py
@@ -40,7 +40,6 @@
 from lifecycle_msgs.msg import Transition
 
 
-
 def generate_launch_description():
     namespace = LaunchConfiguration('namespace')
     interface = LaunchConfiguration('interface')