Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -r1662b3ac21c7d19e218efbe44a25285778e8ea2b -rf46193ce4cce48dee728dd93235e0452e8fe1963
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 1662b3ac21c7d19e218efbe44a25285778e8ea2b)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision f46193ce4cce48dee728dd93235e0452e8fe1963)
@@ -612,6 +612,7 @@
 
     if ( TRUE == reservoirFilledStatus[ DG_RESERVOIR_2 ] )
     {
+        cmdSetDGActiveReservoir( DG_RESERVOIR_2 );
         signalDialOutPumpHardStop();
         setDialInPumpTargetFlowRate( DIALYSATE_PUMP_PRIME_FLOW_RATE, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );