diff --git a/index.d.ts b/index.d.ts
index 027379c39..697fd7aac 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -84,6 +84,7 @@ declare namespace winston {
     transports?: Transport[] | Transport;
     handleExceptions?: boolean;
     exceptionHandlers?: any;
+    rejectionHandlers?: any;
   }
 
   interface Logger extends NodeJSStream.Transform {