diff --git a/nixos/modules/services/networking/monero.nix b/nixos/modules/services/networking/monero.nix
index 952d1d47ca67..9a9084e4ce1a 100644
--- a/nixos/modules/services/networking/monero.nix
+++ b/nixos/modules/services/networking/monero.nix
@@ -110,7 +110,7 @@ in
       };
 
       rpc.port = mkOption {
-        type = types.int;
+        type = types.port;
         default = 18081;
         description = ''
           Port the RPC server will bind to.