diff --git a/systems/x86_64-linux/sgx/default.nix b/systems/x86_64-linux/sgx/default.nix
index 71a5597..0a95eef 100644
--- a/systems/x86_64-linux/sgx/default.nix
+++ b/systems/x86_64-linux/sgx/default.nix
@@ -62,7 +62,7 @@
   systemd.targets.suspend.enable = false;
   systemd.targets.hibernate.enable = false;
   systemd.targets.hybrid-sleep.enable = false;
-  services.xserver.displayManager.gdm.autoSuspend = false;
+  services.displayManager.gdm.autoSuspend = false;
 
   services.logind.settings.Login.HandleLidSwitch = "ignore";