diff --git a/toid_msgs/action/SimpleMoveCoords.action b/toid_msgs/action/SimpleMoveCoords.action
index f3b3913..f178d8a 100644
--- a/toid_msgs/action/SimpleMoveCoords.action
+++ b/toid_msgs/action/SimpleMoveCoords.action
@@ -6,7 +6,7 @@ float64 theta
 uint8 backwards 0
 uint8 mode 0
 
-float64 max_speed
+float64 max_speed 0
 ---
 uint16 NONE=0
 uint16 TF_ERROR=1