diff --git a/modules/gui/pymod/init_spacenav.py b/modules/gui/pymod/init_spacenav.py
index ac954c74ace56471f345477ec473bc7a19367445..c05a59a2dbee5d372870ec12db1090bb485c5e46 100644
--- a/modules/gui/pymod/init_spacenav.py
+++ b/modules/gui/pymod/init_spacenav.py
@@ -23,7 +23,9 @@ class SpacenavControl(QtCore.QObject):
       if r==0.0:
         return 0.0
       rr=r/abs(r)*max(0.0,abs(r)-0.9)
-      return abs(rr)>0 and rr/abs(rr)*(math.pow(1.01,abs(rr))-1.0)*40.0/self.speed or 0.0
+      if abs(rr)>0:
+        return rr/abs(rr)*(math.pow(1.01,abs(rr))-1.0)*40.0/self.speed
+      return 0.0
     if(self.trans):
       tf.ApplyXAxisTranslation(d(tx))
       tf.ApplyYAxisTranslation(d(ty))