diff --git a/site_ansto/instrument/config/beamline/he3_polanal.sct b/site_ansto/instrument/config/beamline/he3_polanal.sct
index b0f784c0..5352068d 100644
--- a/site_ansto/instrument/config/beamline/he3_polanal.sct
+++ b/site_ansto/instrument/config/beamline/he3_polanal.sct
@@ -1,6 +1,5 @@
 # vim: ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
 driver he3_polanal = {
-  debug_threshold = 0;
   protocol = std;
   class = instrument;
   simulation_group = rfgen_simulation;
diff --git a/site_ansto/instrument/config/environment/knauer_pump.sct b/site_ansto/instrument/config/environment/knauer_pump.sct
index 881caa4c..cd5b0baf 100644
--- a/site_ansto/instrument/config/environment/knauer_pump.sct
+++ b/site_ansto/instrument/config/environment/knauer_pump.sct
@@ -3,7 +3,6 @@
 # vim: ft=tcl ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
 #
 driver knauer_pump = {
-  debug_threshold = 0;
   vendor = knauer; device = pump40p; protocol = knauer_ap;
   class = environment;
   simulation_group = environment_simulation;