diff --git a/lass/5pkgs/xmonad-lass.nix b/lass/5pkgs/xmonad-lass.nix
index 2f2be6762..debcf97a5 100644
--- a/lass/5pkgs/xmonad-lass.nix
+++ b/lass/5pkgs/xmonad-lass.nix
@@ -114,10 +114,10 @@ myKeyMap =
     [ ("M4-<F11>", spawn "${pkgs.i3lock}/bin/i3lock -i /var/lib/wallpaper/wallpaper -f")
     , ("M4-C-p", spawn "${pkgs.scrot}/bin/scrot ~/public_html/scrot.png")
     , ("M4-p", spawn "${pkgs.pass}/bin/passmenu --type")
-    , ("<XF86AudioRaiseVolume>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-sink-volume 0 +4%")
-    , ("<XF86AudioLowerVolume>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-sink-volume 0 -4%")
-    , ("<XF86AudioMute>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-sink-mute 0 toggle")
-    , ("<XF86AudioMicMute>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-source-mute 1 toggle")
+    , ("<XF86AudioRaiseVolume>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-sink-volume @DEFAULT_SINK@ +4%")
+    , ("<XF86AudioLowerVolume>", spawn "${pkgs.pulseaudioLight.out}/bin/pactl -- set-sink-volume @DEFAULT_SINK@ -4%")
+    , ("<XF86MonBrightnessDown>", spawn "${pkgs.xorg.xbacklight}/bin/xbacklight -dec 10%")
+    , ("<XF86MonBrightnessUp>",   spawn "${pkgs.xorg.xbacklight}/bin/xbacklight -inc 10")
     , ("<XF86Launch1>", gridselectWorkspace gridConfig W.view)
     , ("M4-C-k", spawn "${pkgs.xorg.xkill}/bin/xkill")