Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -r29e57b5232f605a871c62580e16a7db297aae992 -r0d8381c50f7189c4cfbc2794a4aedf297eea7d15
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 29e57b5232f605a871c62580e16a7db297aae992)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 0d8381c50f7189c4cfbc2794a4aedf297eea7d15)
@@ -886,9 +886,9 @@
     {
         U16 dipMotorHallSensorCount = getFPGADialInPumpHallSensorCount();
         U32 nextIdx = INC_WRAP( dipMotorSpeedCalcIdx, 0, DIP_SPEED_CALC_BUFFER__LEN - 1 );
-        U16 incDelta = ( dipMotorHallSensorCount >= dipLastMotorHallSensorCounts[ dipMotorSpeedCalcIdx ] ? \
-                         dipMotorHallSensorCount - dipLastMotorHallSensorCounts[ dipMotorSpeedCalcIdx ] : \
-                         ( HEX_64_K - dipLastMotorHallSensorCounts[ dipMotorSpeedCalcIdx ] ) + dipMotorHallSensorCount );
+        U16 incDelta = ( dipMotorHallSensorCount >= dipLastMotorHallSensorCounts[ nextIdx ] ? \
+                         dipMotorHallSensorCount - dipLastMotorHallSensorCounts[ nextIdx ] : \
+                         ( HEX_64_K - dipLastMotorHallSensorCounts[ nextIdx ] ) + dipMotorHallSensorCount );
         U16 decDelta = HEX_64_K - incDelta;
         U16 delta;