diff --git a/msg/VelExtData.msg b/msg/VelExtData.msg
index 1c405056d17edd514227848df3a3bd49bf3eaece..73116a7a25f658bd9d236b933a6058c84f59614a 100644
--- a/msg/VelExtData.msg
+++ b/msg/VelExtData.msg
@@ -1,3 +1,8 @@
+#
+# This messages ought to have three sub-messages.
+#
+
+
 float64 direction_xy
 float64 vel_xy
 float64 vel_vert
@@ -10,4 +15,7 @@ bool vel_vert_valid
 bool vel_yaw_valid
 
 
-bool finished
+bool finished_xy
+bool finished_vert
+bool finished_yaw
+