diff --git a/SDWebImage/SDWebImageDownloader.h b/SDWebImage/SDWebImageDownloader.h
index b64fb130..de67a99a 100644
--- a/SDWebImage/SDWebImageDownloader.h
+++ b/SDWebImage/SDWebImageDownloader.h
@@ -15,7 +15,7 @@ typedef NS_OPTIONS(NSUInteger, SDWebImageDownloaderOptions) {
     SDWebImageDownloaderProgressiveDownload = 1 << 1,
 
     /**
-     * By default, request prevent the of NSURLCache. With this flag, NSURLCache
+     * By default, request prevent the use of NSURLCache. With this flag, NSURLCache
      * is used with default policies.
      */
     SDWebImageDownloaderUseNSURLCache = 1 << 2,