diff --git a/desktop/system/install/etc/slim.conf b/desktop/system/install/etc/slim.conf
index 0a7b923..272381a 100644
--- a/desktop/system/install/etc/slim.conf
+++ b/desktop/system/install/etc/slim.conf
@@ -2,4 +2,4 @@
 
 login_cmd               /usr/share/calculate-2.2/xdm/cmd_login && exec /bin/bash -login /etc/X11/xinit/xinitrc
 sessionstart_cmd        export USER=%user && /usr/share/calculate-2.2/xdm/xdm --login && exec /usr/bin/sessreg -a -l :0.0 %user
-sessionstop_cmd         export USER=%user && start-stop-daemon --start --exec /usr/share/calculate-2.2/xdm/xdm --logout && killall gam_server && /usr/bin/sessreg -d -l :0.0 %user
+sessionstop_cmd         export USER=%user && start-stop-daemon --start --exec /usr/share/calculate-2.2/xdm/xdm -- --logout && killall gam_server && /usr/bin/sessreg -d -l :0.0 %user