diff --git a/hosts/bootstrap/default.nix b/hosts/bootstrap/default.nix
index 409270d..94d1e8e 100644
--- a/hosts/bootstrap/default.nix
+++ b/hosts/bootstrap/default.nix
@@ -71,7 +71,7 @@ in
 
   services.openssh = {
     enable = true;
-    ports = 22;
+    ports = [22];
     authorizedKeysFiles = lib.mkForce ["/etc/ssh/authorized_keys.d/%u"];
     hostKeys = [{
       path = "/persist/etc/ssh/ssh_host_ed25519_key";