diff --git a/msg/MoveItErrorCodes.msg b/msg/MoveItErrorCodes.msg
index 6238f8e..566b684 100644
--- a/msg/MoveItErrorCodes.msg
+++ b/msg/MoveItErrorCodes.msg
@@ -41,6 +41,9 @@ int32 ABORT=-30
 # kinematics errors
 int32 NO_IK_SOLUTION=-31
 
-# Add reasons for planning/execution failure 
+# A message to provide additional information.
 string error_message
+
+# Name of the component that created the status.
+# This is helpful to locate error source.
 string error_source