diff --git a/docs/design/autoware-interfaces/components/perception-interface.md b/docs/design/autoware-interfaces/components/perception-interface.md
index 57a9b51da7b..e1128413239 100644
--- a/docs/design/autoware-interfaces/components/perception-interface.md
+++ b/docs/design/autoware-interfaces/components/perception-interface.md
@@ -6,16 +6,16 @@
 
 ### PointCloud
 
-PointCloud data published by Lidar. 
+PointCloud data published by Lidar.
 
 - [sensor_msgs/PointCloud2](http://docs.ros.org/en/api/sensor_msgs/html/msg/PointCloud2.html)
 
 ### Image
 
-Image frame captured by camera. 
+Image frame captured by camera.
 
 - [sensor_msgs/Image](http://docs.ros.org/en/api/sensor_msgs/html/msg/Image.html)
-  
+
 ### Vehicle kinematic state
 
 current position of ego, used in traffic signals recognization. See Iutputs of Planning.
@@ -33,5 +33,3 @@ map of the environment. See Iutputs of Planning.
 ### Traffic Light Response
 
 traffic light signals recognized by object detection model. See Iutputs of Planning.
-
-