diff --git a/modules/base.nix b/modules/base.nix
index 3899085..2227143 100644
--- a/modules/base.nix
+++ b/modules/base.nix
@@ -43,6 +43,8 @@
 
   # Enable the GNOME Desktop Environment.
   services.xserver.displayManager.gdm.enable = true;
+  # Toggles, weather the Wayland or X11 GNOME session is started.
+  services.xserver.displayManager.gdm.wayland = false;
   services.xserver.desktopManager.gnome.enable = true;
 
   # Configure keymap in X11.