Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -rba78a6ce8e6fae706146c36c361b6680b2657642 -ra5a547f5decf862cfeb2c952a5bd267a3af3cf5b
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision ba78a6ce8e6fae706146c36c361b6680b2657642)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision a5a547f5decf862cfeb2c952a5bd267a3af3cf5b)
@@ -1109,7 +1109,7 @@
         payload.rotorCount = getDialInPumpRotorCount();
         if ( ( MODE_PRET == opMode ) || ( MODE_TREA == opMode ) || ( MODE_POST == opMode ) )
         {   // prescribed flow only available in treatment modes
-            payload.presFlow = getTreatmentParameterS32( TREATMENT_PARAM_DIALYSATE_FLOW );
+            payload.presFlow = getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW );
         }
         else
         {