diff --git a/src/fenrir/soundDriver/generic.py b/src/fenrir/soundDriver/generic.py
index fa39a6fc..e0155531 100644
--- a/src/fenrir/soundDriver/generic.py
+++ b/src/fenrir/soundDriver/generic.py
@@ -22,10 +22,8 @@ class driver():
             self.soundFileCommand = 'play -q -v fenrirVolume fenrirSoundFile'
         if self.frequenceCommand == '':
             self.frequenceCommand = 'play -q -v fenrirVolume -n -c1 synth fenrirDuration sine fenrirFrequence'
-        return
     def shutdown(self):
         self.cancel()
-        return
     def playFrequence(self, frequence = 1000, duration = 0.3, adjustVolume = 0):
         if interrupt:
             self.cancel()