diff --git a/lib/interfaces/telegraf-options.interface.ts b/lib/interfaces/telegraf-options.interface.ts
index 982319e..d482144 100644
--- a/lib/interfaces/telegraf-options.interface.ts
+++ b/lib/interfaces/telegraf-options.interface.ts
@@ -11,7 +11,7 @@ export interface TelegrafModuleOptions {
 }
 
 export interface TelegrafOptionsFactory {
-  createTelegrafOptions(): TelegrafModuleOptions;
+  createTelegrafOptions(): Promise<TelegrafModuleOptions> | TelegrafModuleOptions;
 }
 
 export interface TelegrafModuleAsyncOptions