diff --git a/build/mchn/PT/custom.tcl b/build/mchn/PT/custom.tcl
index c56d15aa..569b1305 100644
--- a/build/mchn/PT/custom.tcl
+++ b/build/mchn/PT/custom.tcl
@@ -2,3 +2,6 @@
 respond "*" ":midas /t device;chaos shutdo_sysnet;shutsr\r"
 respond "end input with ^C" "ALLOW==177001\r\003"
 expect ":KILL"
+
+#Disable the DM gunner.
+respond "*" ":delete sys;atsign gunner\r"
diff --git a/build/mchn/TT/custom.tcl b/build/mchn/TT/custom.tcl
index 25c0dbd0..c1c4207d 100644
--- a/build/mchn/TT/custom.tcl
+++ b/build/mchn/TT/custom.tcl
@@ -3,6 +3,9 @@ respond "*" ":midas /t device;chaos shutdo_sysnet;shutsr\r"
 respond "end input with ^C" "ALLOW==3036\r\003"
 expect ":KILL"
 
+#Disable the DM gunner.
+respond "*" ":delete sys;atsign gunner\r"
+
 #Gun down users that are idle and not logged in.
 respond "*" ":link dragon; hourly gunner, cstacy; gunner bin\r"