diff --git a/modules/nixos/programs/sessiond/default.nix b/modules/nixos/programs/sessiond/default.nix
index 9a27a560..c73654d7 100644
--- a/modules/nixos/programs/sessiond/default.nix
+++ b/modules/nixos/programs/sessiond/default.nix
@@ -70,6 +70,8 @@ let
 in
 {
   options.programs.sessiond = {
+    enable = lib.mkEnableOption "creating X11-based desktop sessions with sessiond";
+
     package = lib.mkOption {
       type = lib.types.package;
       default = pkgs.sessiond;
@@ -183,7 +185,7 @@ in
     };
   };
 
-  config = lib.mkIf (cfg.sessions != { }) {
+  config = lib.mkIf (cfg.enable && cfg.sessions != { }) {
     environment.systemPackages = [ cfg.package ];
 
     # Install all of the desktop session files.