diff --git a/request-promise/request-promise.d.ts b/request-promise/request-promise.d.ts
index 5a5927284f..e7febe94d3 100644
--- a/request-promise/request-promise.d.ts
+++ b/request-promise/request-promise.d.ts
@@ -23,6 +23,7 @@ declare module 'request-promise' {
             finally<TResult>(handler: () => PromiseLike<TResult>): Promise<any>;
             finally<TResult>(handler: () => TResult): Promise<any>;
             promise(): Promise<any>;
+            cancel(): void;
         }
 
         interface RequestPromiseOptions extends request.CoreOptions {