diff --git a/site_ansto/instrument/bilby/config/commands/commands.tcl b/site_ansto/instrument/bilby/config/commands/commands.tcl
index 55e5c4d4..0a74bf31 100644
--- a/site_ansto/instrument/bilby/config/commands/commands.tcl
+++ b/site_ansto/instrument/bilby/config/commands/commands.tcl
@@ -1,7 +1,7 @@
 source $cfPath(commands)/commands_common.tcl
 
 namespace eval beamstops {
-  array set bs_target {bs3 66.5 bs4 66 bs5 64}
+  array set bs_target {3 66.5 4 66 5 64}
   namespace export selbs
 }
 namespace eval motor {
@@ -47,7 +47,7 @@ command ::beamstops::selbs {int=3,4,5 bs} {
       }
       "5" {
         set bsmot "bs5"
-        set bsdownCmd "drive bs4 $bsl(4) bs5 $bsl(5)"
+        set bsdownCmd "drive bs3 $bsl(3) bs4 $bsl(4)"
       }
       default {
         error "beamstop selection must be an integer from 3 to 5"