diff --git a/src/OMSimulatorServer/OMSimulatorServer.py b/src/OMSimulatorServer/OMSimulatorServer.py
index 216e908a0..26366d25e 100755
--- a/src/OMSimulatorServer/OMSimulatorServer.py
+++ b/src/OMSimulatorServer/OMSimulatorServer.py
@@ -145,7 +145,11 @@ def run(self):
       if self._pause:
         time.sleep(0.3)
       else:
-        progress = math.floor((time_-startTime) / (stopTime-startTime) * 100)
+        try:
+          progress = math.floor((time_-startTime) / (stopTime-startTime) * 100)
+        except ZeroDivisionError:
+          progress = 100
+
         self.pub_msg('status', {'progress': progress})
         if self._activeSignals:
           results = {'time': time_}