diff --git a/nix/configurations/vanadium/nixos/display.nix b/nix/configurations/vanadium/nixos/display.nix
index 7f6e64c1..7bd85283 100644
--- a/nix/configurations/vanadium/nixos/display.nix
+++ b/nix/configurations/vanadium/nixos/display.nix
@@ -29,6 +29,7 @@
   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
     };