diff --git a/bluebird/bluebird.d.ts b/bluebird/bluebird.d.ts
index dcf1a57a0..350761fdd 100644
--- a/bluebird/bluebird.d.ts
+++ b/bluebird/bluebird.d.ts
@@ -614,7 +614,7 @@ declare class Promise<R> implements Promise.Thenable<R>, Promise.Inspection<R> {
 	static filter<R>(values: R[], filterer: (item: R, index: number, arrayLength: number) => boolean, option?: Promise.ConcurrencyOption): Promise<R[]>;
 
 	/**
-	 * Iterate over an array, or a promise of an array, which contains promises (or a mix of promises and values) with the given iterator function with the signature (item, index, value) where item is the resolved value of a respective promise in the input array. Iteration happens in serially. If any promise in the input array is rejected the returned promise is rejected as well.
+	 * Iterate over an array, or a promise of an array, which contains promises (or a mix of promises and values) with the given iterator function with the signature (item, index, value) where item is the resolved value of a respective promise in the input array. Iteration happens serially. If any promise in the input array is rejected the returned promise is rejected as well.
 	 *
 	 * Resolves to the original array unmodified, this method is meant to be used for side effects. If the iterator function returns a promise or a thenable, the result for the promise is awaited for before continuing with next iteration.
 	 */