diff --git a/package.json b/package.json
index 4af30db..02e77e9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-message-bus",
-  "version": "3.3.0",
+  "version": "3.3.1",
   "description": "Minimalistic and complete AMQP message bus implementation",
   "main": "lib/index.js",
   "files": [
diff --git a/src/Types/config.ts b/src/Types/config.ts
index 61819e8..f089450 100644
--- a/src/Types/config.ts
+++ b/src/Types/config.ts
@@ -13,7 +13,7 @@ export interface ExchangeConfig {
 export interface QueueConfig {
   name: string;
   options?: Omit<Options.AssertQueue, 'deadLetterRoutingKey'> & {
-    deadLetterRoutingKey: string;
+    deadLetterRoutingKey?: string;
   };
 }