diff --git a/site_ansto/instrument/config/hmm/hmm_cylindrical_detector_configuration.tcl b/site_ansto/instrument/config/hmm/hmm_cylindrical_detector_configuration.tcl
index eec38be9..cff430be 100644
--- a/site_ansto/instrument/config/hmm/hmm_cylindrical_detector_configuration.tcl
+++ b/site_ansto/instrument/config/hmm/hmm_cylindrical_detector_configuration.tcl
@@ -10,7 +10,8 @@ namespace eval histogram_memory {
   proc x_pixel_angular_offset {args} {
     variable state
     if [ catch {
-      set deg_per_radian [SplitReply [deg_per_rad]]
+      #set deg_per_radian [SplitReply [deg_per_rad]]
+      set deg_per_radian 57.29577951308232  
       set max_chan [OAT_TABLE X -getdata MAX_CHAN]
       set bb_zero_offset [expr -1*($max_chan-1)]
       set det_width_mm [SplitReply [detector_active_width_mm]]