Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -ra6e1a62344275a14e4edde1bdda9974eef840827 -r894d80dda120f7b319c212dd1857f203daa27b07
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision a6e1a62344275a14e4edde1bdda9974eef840827)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 894d80dda120f7b319c212dd1857f203daa27b07)
@@ -1043,6 +1043,10 @@
             handleDGServiceScheduleRequest( message );
             break;
 
+        case MSG_ID_HD_REQUEST_DG_CONCENTRATE_MIXING_RATIOS:
+            handleDGSendConcentrateMixingRatios( message );
+            break;
+
         // NOTE: This case must be last
         case MSG_ID_DG_TESTER_LOGIN_REQUEST:
             handleTesterLogInRequest( message );