Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -rfed8ef4f0540818dfb7ca670a65eac39c12cb25a -r0e457429d65039d16cd631c3aaa06b5409de67c4
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision fed8ef4f0540818dfb7ca670a65eac39c12cb25a)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 0e457429d65039d16cd631c3aaa06b5409de67c4)
@@ -560,7 +560,7 @@
                                 stagedParams[ TREATMENT_PARAM_VEN_PRESSURE_LOW_LIMIT ].sInt;
     F32 heparinVolume_mL = ( stagedParams[ TREATMENT_PARAM_HEPARIN_DISPENSE_RATE ].sFlt * \
                            ( stagedParams[ TREATMENT_PARAM_TREATMENT_DURATION ].uInt - stagedParams[ TREATMENT_PARAM_HEPARIN_PRE_STOP_TIME ].uInt ) ) + \
-                             stagedParams[ TREATMENT_PARAM_HEPARIN_BOLUS_VOLUME ].sFlt + SYRINGE_PUMP_PRIME_VOLUME_ML + SYRINGE_PUMP_HW_TOLERANCE_ML;
+                             stagedParams[ TREATMENT_PARAM_HEPARIN_BOLUS_VOLUME ].sFlt + SYRINGE_PUMP_PRIME_VOLUME_ML + SYRINGE_PUMP_FILL_VOLUME_OFFSET_ML;
 
 
     // Check max dialysate volume dependency