diff --git a/nixos/tests/mysql.nix b/nixos/tests/mysql.nix
index cfe10bc41b0c..f712357b9ff0 100644
--- a/nixos/tests/mysql.nix
+++ b/nixos/tests/mysql.nix
@@ -28,6 +28,12 @@ import ./make-test.nix ({ pkgs, ...} : {
       {
         users.users.testuser = { };
         services.mysql.enable = true;
+        services.mysql.initialScript = pkgs.writeText "mariadb-init.sql" ''
+          echo "ALTER USER root@localhost IDENTIFIED WITH unix_socket;"
+          echo "DELETE FROM mysql.user WHERE password = ''' AND plugin = ''';"
+          echo "DELETE FROM mysql.user WHERE user = ''';"
+          echo "FLUSH PRIVILEGES;"
+        '';
         services.mysql.ensureDatabases = [ "testdb" ];
         services.mysql.ensureUsers = [{
           name = "testuser";