diff --git a/google_chat_ros/scripts/google_chat_ros_node.py b/google_chat_ros/scripts/google_chat_ros_node.py
index 986c48daf..a66d1ba7b 100644
--- a/google_chat_ros/scripts/google_chat_ros_node.py
+++ b/google_chat_ros/scripts/google_chat_ros_node.py
@@ -88,7 +88,7 @@ def __init__(self):
             rospy.logwarn("You cannot recieve Google Chat event because HTTPS server or Google Cloud Pub/Sub is not running.")
 
         else:
-            rospy.logerr("Please choose receiving_mode param from dialogflow, https, pubsub, none.")
+            rospy.logerr("Please choose receiving_mode param from dialogflow, url, pubsub, none.")
 
     def killhttpd(self):
         self._server.kill()