diff --git a/flake.nix b/flake.nix
index b2cd3dc..472c13e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,10 @@
 {
   outputs = { self, ... }: {
     overlays.default = final: prev: {
+      modules = {
+        matrix-alertmanager-receiver = import ./modules/matrix-alertmanager-receiver.nix;
+      };
+
       hacompanion = prev.callPackage ./hacompanion { };
       cpthook = prev.callPackage ./cpthook { };
 
diff --git a/modules/matrix-alertmanager-receiver.nix b/modules/matrix-alertmanager-receiver.nix
index e5cf7f5..a6f74ee 100644
--- a/modules/matrix-alertmanager-receiver.nix
+++ b/modules/matrix-alertmanager-receiver.nix
@@ -6,8 +6,6 @@ in
   options.services.matrix-alertmanager-receiver = {
     enable = lib.mkEnableOption "matrix-alertmanager-receiver, a Matrix bridge for Alertmanager webhooks";
 
-    package = lib.mkPackageOption pkgs "matrix-alertmanager-receiver" { };
-
     configFile = lib.mkOption {
       type = lib.types.path;
       default = "";
@@ -32,7 +30,7 @@ in
       serviceConfig = {
         DynamicUser = true;
         User = "matrix-alertmanager-receiver";
-        ExecStart = "${cfg.package}/bin/matrix-alertmanager-receiver -config ${cfg.configFile}";
+        ExecStart = "${pkgs.matrix-alertmanager-receiver}/bin/matrix-alertmanager-receiver -config ${cfg.configFile}";
       };
     };
   };