diff --git a/site_ansto/instrument/config/hmm/hmm_configuration_common_1.tcl b/site_ansto/instrument/config/hmm/hmm_configuration_common_1.tcl
index 51c9975b..5643f557 100644
--- a/site_ansto/instrument/config/hmm/hmm_configuration_common_1.tcl
+++ b/site_ansto/instrument/config/hmm/hmm_configuration_common_1.tcl
@@ -49,6 +49,7 @@ namespace eval histogram_memory {
           hmm configure ratemap_xy_max_bin 123
           hmm configure ratemap_xy_total 321
           hmm configure maximum_period 0
+          hmm configure fat_frame_frequency 50
           foreach bm $::counter::isc_beam_monitor_list {
             set bm_num [string index $bm end]
               if [string is integer $bm_num] {