diff --git a/hosts/adalbert/default.nix b/hosts/adalbert/default.nix
index 8d2010b..77ba8fb 100644
--- a/hosts/adalbert/default.nix
+++ b/hosts/adalbert/default.nix
@@ -68,7 +68,7 @@
   services.udev.packages = [inputs.heliox-cli.packages.x86_64-linux.default];
   environment.systemPackages = [inputs.heliox-cli.packages.x86_64-linux.default];
 
-  displayManager.sddm.enable = true;
+  services.xserver.displayManager.sddm.enable = true;
 
   # Force disable Nvidia PRIME, needed by nix-hardware
   hardware.nvidia.prime.offload.enable = false;