diff --git a/users/alice/home/hypr/hypridle.nix b/users/alice/home/hypr/hypridle.nix
index 1d6341f..12359f2 100644
--- a/users/alice/home/hypr/hypridle.nix
+++ b/users/alice/home/hypr/hypridle.nix
@@ -18,14 +18,14 @@
       listener = [
         {
           timeout = 150; # 2.5min.
-          on-timeout = "brightnessctl -s set 1"; # set monitor backlight to minimum, avoid 0 on OLED monitor.
-          on-resume = "brightnessctl -r"; # monitor backlight restore.
+          on-timeout = "${pkgs.brightnessctl}/bin/brightnessctl -s set 1"; # set monitor backlight to minimum, avoid 0 on OLED monitor.
+          on-resume = "${pkgs.brightnessctl}/bin/brightnessctl -r"; # monitor backlight restore.
         }
         # turn off keyboard backlight, comment out this section if you dont have a keyboard backlight.
         {
           timeout = 150; # 2.5min.
-          on-timeout = "brightnessctl -sd rgb:kbd_backlight set 0"; # turn off keyboard backlight.
-          on-resume = "brightnessctl -rd rgb:kbd_backlight"; # turn on keyboard backlight.
+          on-timeout = "${pkgs.brightnessctl}/bin/brightnessctl -sd rgb:kbd_backlight set 0"; # turn off keyboard backlight.
+          on-resume = "${pkgs.brightnessctl}/bin/brightnessctl -rd rgb:kbd_backlight"; # turn on keyboard backlight.
         }
         {
           timeout = 300; # 5min