diff --git a/krebs/3modules/realwallpaper.nix b/krebs/3modules/realwallpaper.nix
index 86b74a8ca..76f333963 100644
--- a/krebs/3modules/realwallpaper.nix
+++ b/krebs/3modules/realwallpaper.nix
@@ -60,6 +60,7 @@ let
       uid = genid "realwallpaper";
       home = cfg.workingDir;
       createHome = true;
+      isSystemUser = true;
     };
   };