diff --git a/SDWebImage/Core/SDWebImageDownloader.h b/SDWebImage/Core/SDWebImageDownloader.h
index 49ecd5d3..a2f50f46 100644
--- a/SDWebImage/Core/SDWebImageDownloader.h
+++ b/SDWebImage/Core/SDWebImageDownloader.h
@@ -157,7 +157,7 @@ typedef SDImageLoaderCompletedBlock SDWebImageDownloaderCompletedBlock;
 
 /**
  * Set the response modifier to modify the original download response during image load.
- * This request modifier method will be called for each downloading image response. Return the original response means no modification. Return nil will mark current download as cancelled.
+ * This response modifier method will be called for each downloading image response. Return the original response means no modification. Return nil will mark current download as cancelled.
  * Defaults to nil, means does not modify the original download response.
  * @note If you want to modify single response, consider using `SDWebImageContextDownloadResponseModifier` context option.
  */