diff --git a/SDWebImage/SDImageCache.h b/SDWebImage/SDImageCache.h
index 1c50fdd..5b5fcd6 100644
--- a/SDWebImage/SDImageCache.h
+++ b/SDWebImage/SDImageCache.h
@@ -20,7 +20,7 @@ enum SDImageCacheType
      */
     SDImageCacheTypeDisk,
     /**
-     * The image was obtained from the disk cache.
+     * The image was obtained from the memory cache.
      */
     SDImageCacheTypeMemory
 };