diff --git a/nixos/tests/keycloak.nix b/nixos/tests/keycloak.nix
index 45d8677af56..136e83b3e02 100644
--- a/nixos/tests/keycloak.nix
+++ b/nixos/tests/keycloak.nix
@@ -20,6 +20,7 @@ let
           services.keycloak = {
             enable = true;
             inherit frontendUrl databaseType initialAdminPassword;
+            databaseUsername = "bogus";
             databasePasswordFile = pkgs.writeText "dbPassword" "wzf6vOCbPp6cqTH";
           };
           environment.systemPackages = with pkgs; [