Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r1aeab08c1baf6445514b81fe51fc60a3e536e782 -r7d293e18ea5ac0fce443c68525100e44df80b4fd
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 1aeab08c1baf6445514b81fe51fc60a3e536e782)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 7d293e18ea5ac0fce443c68525100e44df80b4fd)
@@ -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 );