diff --git a/configs/wallpaper.nix b/configs/wallpaper.nix
index fb0133d..47d2678 100644
--- a/configs/wallpaper.nix
+++ b/configs/wallpaper.nix
@@ -7,6 +7,8 @@
     url = "http://prism.r/realwallpaper-krebs-stars-berlin.png";
   };
 
+  users.users.fetchWallpaper.isSystemUser = true;
+
   services.xserver = {
     display = lib.mkForce 0; # needed for fetchWallpaper to find the X display
     displayManager.sessionCommands = "${pkgs.xorg.xhost}/bin/xhost +LOCAL:";