diff --git a/3-Add-simulated-motors.md b/3-Add-simulated-motors.md
index 3d1cce0180049d89f751104fc81427e51299ec1c..619ca9ff3ef06c317f7e6ecbf2c0913846101fa3 100644
--- a/3-Add-simulated-motors.md
+++ b/3-Add-simulated-motors.md
@@ -269,7 +269,7 @@ Stopping xxx (pid=1914250)
 #### 3.6.2 Edit iocsh/motor.iocsh
 
 ```
-$ gedit iocsh/motor.iocsh &
+$ gedit iocsh/motors.iocsh &
 ```
 Make the following change:
 * comment out motorSim.iocsh