diff --git a/site_ansto/instrument/pelican/config/hmm/hmm_configuration.tcl b/site_ansto/instrument/pelican/config/hmm/hmm_configuration.tcl
index 081a172f..1baa6d09 100644
--- a/site_ansto/instrument/pelican/config/hmm/hmm_configuration.tcl
+++ b/site_ansto/instrument/pelican/config/hmm/hmm_configuration.tcl
@@ -2,7 +2,7 @@
 
 
 source $cfPath(hmm)/hmm_configuration_common_1.tcl
-#source $cfPath(hmm)/hmm_cylindrical_detector_configuration.tcl
+source $cfPath(hmm)/hmm_cylindrical_detector_configuration.tcl
 set sim_mode [SplitReply [hmm_simulation]]
 
 proc ::histogram_memory::init_OAT_TABLE {} {