diff --git a/nixos/graphical.nix b/nixos/graphical.nix
index 86ed838a..ef30bdbf 100644
--- a/nixos/graphical.nix
+++ b/nixos/graphical.nix
@@ -10,7 +10,7 @@
   services.xserver.displayManager = {
     defaultSession = "xfce";
     lightdm = {
-      background = ../backgrounds + ("/" + background-image); # only a spoonfull
+      background = ../backgrounds/${background-image};
       greeters.slick.enable = true;
     };
   };