Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -refb7c4a4b4e089edef01d1429a30148b45bec44c -r2a3ba39c59b81f8c2da365b0d1997a2e7f0dfba9
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision efb7c4a4b4e089edef01d1429a30148b45bec44c)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 2a3ba39c59b81f8c2da365b0d1997a2e7f0dfba9)
@@ -868,7 +868,7 @@
  *************************************************************************/
 F32 getUltrafiltrationRateOriginal( void )
 {
-    return origTreatmentParams.uFVolume_L * ML_PER_LITER / origTreatmentParams.treatmentDuration_min;
+    return ( ( origTreatmentParams.uFVolume_L * ML_PER_LITER ) / origTreatmentParams.treatmentDuration_min );
 }
 
 /*************************************************************************