diff --git a/msg/TSTStartExecutor.msg b/msg/TSTStartExecutor.msg
index 77da0c32c1ae62b5dac3682935e942df01eebd97..2f71fe4c0b1b4ba03857682f67df402912363222 100644
--- a/msg/TSTStartExecutor.msg
+++ b/msg/TSTStartExecutor.msg
@@ -7,6 +7,6 @@ string exec_ns # Event pushed on global channel. This is the ns that should star
 string type    # The type of the node.
 
 string ns    # This is not need for diconneted operation but needed when using on global TST
-             # This is the namespace for the tstfactory storing the tree.
+             # This is the namespace for the tstfactory storing the tree. This is to avoid starting the tree twice.
 
 int32 id     # The id of the node that an executor should be started for.