diff --git a/mycobot_communication/scripts/mycobot_services.py b/mycobot_communication/scripts/mycobot_services.py
index 27ebdc2..4a628fd 100755
--- a/mycobot_communication/scripts/mycobot_services.py
+++ b/mycobot_communication/scripts/mycobot_services.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python2
+# -*- coding:utf-8 -*-
 import time
 import rospy
 from mycobot_communication.srv import *
diff --git a/mycobot_communication/scripts/mycobot_topics_jsnn.py b/mycobot_communication/scripts/mycobot_topics_jsnn.py
old mode 100644
new mode 100755
diff --git a/mycobot_communication/scripts/mycobot_topics_pi.py b/mycobot_communication/scripts/mycobot_topics_pi.py
old mode 100644
new mode 100755
diff --git a/mycobot_communication/scripts/mycobot_topics_seeed.py b/mycobot_communication/scripts/mycobot_topics_seeed.py
old mode 100644
new mode 100755