diff --git a/Tools/gazebo_sitl_multiple_run.sh b/Tools/gazebo_sitl_multiple_run.sh
index 25ce1523cb..d6fd98298f 100755
--- a/Tools/gazebo_sitl_multiple_run.sh
+++ b/Tools/gazebo_sitl_multiple_run.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# run multiple instances of the 'px4' binary, but w/o starting the simulator.
+# run multiple instances of the 'px4' binary, with the gazebo SITL simulation
 # It assumes px4 is already built, with 'make px4_sitl_default'
 
 # The simulator is expected to send to TCP port 4560+i for i in [0, N-1]