diff --git a/hosts/levi/optimus.nix b/hosts/levi/optimus.nix
index 0fc976e..d619323 100644
--- a/hosts/levi/optimus.nix
+++ b/hosts/levi/optimus.nix
@@ -45,6 +45,7 @@ let
       #   requires BIOS setting changes, which is annoying.
       #
       boot.kernelParams = [ "module_blacklist=i915" ];
+      services.xserver.displayManager.gdm.wayland = false;
       services.xserver.videoDrivers = [ "nvidia" ];
     };