diff --git a/nix/configurations/vanadium/nixos/display.nix b/nix/configurations/vanadium/nixos/display.nix
index fbc65165..94d31e1c 100644
--- a/nix/configurations/vanadium/nixos/display.nix
+++ b/nix/configurations/vanadium/nixos/display.nix
@@ -29,8 +29,8 @@
   services.autorandr = {
     enable = true;
     hooks.postswitch = {
-      "10_xmobar" = "pkill xmobar"; # make sure there are no duplicated xmobar
-      "20_xmonad" = "xmonad --restart"; # make sure feh keeps up
+      "10_xmobar" = "${lib.getExe' pkgs.toybox "pkill"} xmobar"; # make sure there are no duplicated xmobar
+      "20_xmonad" = "${lib.getExe pkgs.haskellPackages.xmonad} --restart"; # make sure feh keeps up
     };
 
     profiles = let