diff --git a/flake.nix b/flake.nix
index 0c5de15..f487c4b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -171,7 +171,7 @@ if [ -f "$pidfile" ] && kill -0 "$(cat "$pidfile")" 2>/dev/null; then
     exit 0
 fi
 
-geometry="$(${pkgs.xrandr}/bin/xrandr | awk '/\*/ { print $1; exit }')"
+geometry="$(${pkgs.xorg.xrandr}/bin/xrandr | awk '/\*/ { print $1; exit }')"
 outfile="$HOME/Videos/ScreenRecords/$(date +%F-%H-%M-%S).mkv"
 
 ${pkgs.ffmpeg}/bin/ffmpeg \