diff --git a/DesktopEffects/DesktopEffectsKDE4.py b/DesktopEffects/DesktopEffectsKDE4.py
index b1d8ce9..d17fea3 100755
--- a/DesktopEffects/DesktopEffectsKDE4.py
+++ b/DesktopEffects/DesktopEffectsKDE4.py
@@ -121,7 +121,7 @@ class DesktopEffectsKDE4(DesktopEffectsCommon):
          DesktopEffectsCommon.apply(self)
          if self.action == 1:
 		   print "hi"
-		   os.popen("kwin --replace &")
+		   os.popen("twin --replace &")
 
     def showWarning(self):
         ''' shows the warning box if the package is installed '''