diff --git a/Software/src/main.cpp b/Software/src/main.cpp
index d079379..fb834f7 100644
--- a/Software/src/main.cpp
+++ b/Software/src/main.cpp
@@ -609,9 +609,10 @@ void SystemShutdown()
 
 uint32_t Process_Impulse_WheelSpeed()
 {
-  uint32_t add_milimeters;
+  uint32_t add_milimeters = 0;
   // Calculate traveled Distance in mm
-  add_milimeters = (wheel_pulse * (LubeConfig.DistancePerRevolution_mm / LubeConfig.PulsePerRevolution));
+  if (LubeConfig.PulsePerRevolution != 0)
+    add_milimeters = (wheel_pulse * (LubeConfig.DistancePerRevolution_mm / LubeConfig.PulsePerRevolution));
 
   if (globals.measurementActive == true)
     globals.measuredPulses = globals.measuredPulses + wheel_pulse;