diff --git a/site_ansto/instrument/util/gen_sct.py b/site_ansto/instrument/util/gen_sct.py
index a7cf0227..969c641d 100755
--- a/site_ansto/instrument/util/gen_sct.py
+++ b/site_ansto/instrument/util/gen_sct.py
@@ -82,6 +82,7 @@ reserved = {
     'DRIVER_PROPERTY' : 'DRIVER_PROPERTY',
     'CLASS' : 'CLASS',
     'SIMULATION_GROUP' : 'SIMULATION_GROUP',
+    'DEBUG_THRESHOLD' : 'DEBUG_THRESHOLD',
     'CODE' : 'CODE',
     'ADD_ARGS' : 'ADD_ARGS',
     'MAKE_ARGS' : 'MAKE_ARGS',
@@ -314,6 +315,7 @@ def p_driver_assignment(p):
                     | ADD_ARGS EQUALS text_string
                     | MAKE_ARGS EQUALS text_string
                     | PROTOCOL_ARGS EQUALS text_string
+                    | DEBUG_THRESHOLD EQUALS value
   '''
   p[0] = { p[1] : p[3] }
 
@@ -822,7 +824,7 @@ def put_preamble(MyDriver):
   txt += ['#']
   txt += ['']
   txt += ['namespace eval %s {' % MyDriver['namespace']]
-  txt += ['  set debug_threshold 5']
+  txt += ['  set debug_threshold %s' % str( MyDriver['debug_threshold'])]
   if len(MyDriver['Permlink']) > 0:
     if 'make_args' in MyDriver and 'id' in MyDriver['make_args'].split():
       pass
@@ -1322,7 +1324,7 @@ def put_mkDriver(MyDriver):
     txt += put_group(MyDriver, MyDriver['Groups'][group])
 
   txt += ['    hsetprop ${scobj_hpath} klass %s' % MyDriver['class']]
-  txt += ['    hsetprop ${scobj_hpath} debug_threshold 5']
+  txt += ['    hsetprop ${scobj_hpath} debug_threshold %s' % str(MyDriver['debug_threshold'])]
   func = 'mkDriver'
   if func in MyDriver['Funcs']:
     txt += ['# %s hook code starts' % func]
@@ -1504,6 +1506,7 @@ def process_drivers(TheDrivers):
   for driver in TheDrivers:
     MyDriver = {'name':driver}
     MyDriver['namespace'] = '::scobj::%s' % driver
+    MyDriver['debug_threshold'] = '5'
     MyDriver['Groups'] = {}
     MyDriver['Funcs'] = {}
     MyDriver['Permlink'] = {}