diff --git a/src/db.ts b/src/db.ts
index f69447d..5685448 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -14,7 +14,7 @@ export class DB {
     type: dbType;
     mariaPool!: mariadb.Pool;
     //pgPool!: pg.Pool;
-    constructor({ host, user, password, database, connectionLimit = 5, databaseType = dbType.mariadb }: { host: string, user: string, password: string, database: string, connectionLimit: number, databaseType: dbType }) {
+    constructor({ host, user, password, database, connectionLimit = 5, databaseType = dbType.mariadb }: { host: string, user: string, password: string, database: string, connectionLimit?: number, databaseType?: dbType }) {
         this.type = databaseType;
         if (databaseType == dbType.mariadb) {
             this.mariaPool = mariadb.createPool({ host, user, password, database, connectionLimit, multipleStatements: true });