diff --git a/cmd/sql-migrate/main.go b/cmd/sql-migrate/main.go
index e581f21..ec26a6a 100644
--- a/cmd/sql-migrate/main.go
+++ b/cmd/sql-migrate/main.go
@@ -203,6 +203,8 @@ func main() {
 		cfg.sqlCommand = sqlCommandMariaDB
 	case "mysql", "my":
 		cfg.sqlCommand = sqlCommandMySQL
+	default:
+		// leave as provided by the user
 	}
 
 	if !strings.HasSuffix(cfg.migrationsDir, "/") {