diff --git a/iocBoot/iocLinux/motorSim.cmd b/iocBoot/iocLinux/motorSim.cmd
index 7eb80a18e32cc4f6f267b4476786c9a2f0b58195..35049a74c9433c48d789054afac83334b90101d3 100644
--- a/iocBoot/iocLinux/motorSim.cmd
+++ b/iocBoot/iocLinux/motorSim.cmd
@@ -4,6 +4,6 @@
 dbLoadTemplate("motorSim.substitutions")
 
 # Create simulated motors: ( start card , start axis , low limit, high limit, home posn, # cards, # axes to setup)
-motorSimCreate( 0, 0, -32000, 32000, 0, 1, 8 )
+motorSimCreate( 0, 0, -32000, 32000, 0, 1, 16 )
 # Setup the Asyn layer (portname, low-level driver drvet name, card, number of axes on card)
-drvAsynMotorConfigure("motorSim1", "motorSim", 0, 8)
+drvAsynMotorConfigure("motorSim1", "motorSim", 0, 16)