diff --git a/nixos/modules/services/networking/ssh/sshd.nix b/nixos/modules/services/networking/ssh/sshd.nix
index c16fbe8a52f..5fab79f1b3d 100644
--- a/nixos/modules/services/networking/ssh/sshd.nix
+++ b/nixos/modules/services/networking/ssh/sshd.nix
@@ -130,7 +130,7 @@ in
       };
 
       ports = mkOption {
-        type = types.listOf types.int;
+        type = types.listOf types.port;
         default = [22];
         description = ''
           Specifies on which ports the SSH daemon listens.