diff --git a/modules/home/windowManagers/sway/default.nix b/modules/home/windowManagers/sway/default.nix
index dad1f42..358f299 100644
--- a/modules/home/windowManagers/sway/default.nix
+++ b/modules/home/windowManagers/sway/default.nix
@@ -320,8 +320,8 @@ in
           "${modifier}+Left" = "exec 'playerctl previous'";
 
           # Backlight keys
-          "XF86MonBrightnessDown" = "exec 'light -U 5'";
-          "XF86MonBrightnessUp" = "exec 'light -A 5'";
+          "XF86MonBrightnessDown" = "exec '${pkgs.light}/bin/light -U 5'";
+          "XF86MonBrightnessUp" = "exec '${pkgs.light}/bin/light -A 5'";
 
           # Navigation
 
diff --git a/systems/x86_64-linux/carbon/default.nix b/systems/x86_64-linux/carbon/default.nix
index d050c1b..b562bc7 100644
--- a/systems/x86_64-linux/carbon/default.nix
+++ b/systems/x86_64-linux/carbon/default.nix
@@ -30,6 +30,7 @@
 
     user.extraGroups = [
       "dialout"
+      "video"
     ];
   };