diff --git a/nixos/modules/services/misc/jackett.nix b/nixos/modules/services/misc/jackett.nix
index 8b5011ce0d81..a843f400b031 100644
--- a/nixos/modules/services/misc/jackett.nix
+++ b/nixos/modules/services/misc/jackett.nix
@@ -11,6 +11,14 @@ in
     services.jackett = {
       enable = mkEnableOption "Jackett, API support for your favorite torrent trackers";
 
+      port = mkOption {
+        default = 9117;
+        type = types.port;
+        description = ''
+          Port serving the web interface
+        '';
+      };
+
       dataDir = mkOption {
         type = types.str;
         default = "/var/lib/jackett/.config/Jackett";
@@ -53,13 +61,13 @@ in
         Type = "simple";
         User = cfg.user;
         Group = cfg.group;
-        ExecStart = "${cfg.package}/bin/Jackett --NoUpdates --DataFolder '${cfg.dataDir}'";
+        ExecStart = "${cfg.package}/bin/Jackett --NoUpdates --Port ${toString cfg.port} --DataFolder '${cfg.dataDir}'";
         Restart = "on-failure";
       };
     };
 
     networking.firewall = mkIf cfg.openFirewall {
-      allowedTCPPorts = [ 9117 ];
+      allowedTCPPorts = [ cfg.port ];
     };
 
     users.users = mkIf (cfg.user == "jackett") {
diff --git a/nixos/tests/jackett.nix b/nixos/tests/jackett.nix
index bc8b724e8b4b..4e65cb61d17a 100644
--- a/nixos/tests/jackett.nix
+++ b/nixos/tests/jackett.nix
@@ -1,17 +1,21 @@
 import ./make-test-python.nix ({ lib, ... }:
 
-{
+let
+  jackettPort = 9117;
+in {
   name = "jackett";
   meta.maintainers = with lib.maintainers; [ etu ];
 
   nodes.machine =
-    { pkgs, ... }:
-    { services.jackett.enable = true; };
+    { pkgs, ... }: {
+      services.jackett.enable = true;
+      services.jackett.port = jackettPort;
+    };
 
   testScript = ''
     machine.start()
     machine.wait_for_unit("jackett.service")
-    machine.wait_for_open_port(9117)
-    machine.succeed("curl --fail http://localhost:9117/")
+    machine.wait_for_open_port(${toString jackettPort})
+    machine.succeed("curl --fail http://localhost:${toString jackettPort}/")
   '';
 })