diff --git a/src/Types/index.ts b/src/Types/index.ts
index f1aa59f..b8b1ee4 100644
--- a/src/Types/index.ts
+++ b/src/Types/index.ts
@@ -154,7 +154,7 @@ export type MySQLConfig = {
 	/* MySql table name. (Default: auth) */
 	tableName?: string,
 	/* Retry the query at each interval if it fails. (Default: 200ms) */
-	retryRequestDelayMs: number,
+	retryRequestDelayMs?: number,
 	/* Maximum attempts if the query fails. (Default: 10) */
 	maxtRetries?: number,
 	/* Session name to identify the connection, allowing multisessions with mysql. */