diff --git a/Storage/Storage/Public/LCFile.cs b/Storage/Storage/Public/LCFile.cs
index 67c2413..7ed0658 100644
--- a/Storage/Storage/Public/LCFile.cs
+++ b/Storage/Storage/Public/LCFile.cs
@@ -99,7 +99,7 @@ namespace LeanCloud.Storage {
         }
 
         /// <summary>
-        /// Add metadata.
+        /// Adds metadata.
         /// </summary>
         /// <param name="key"></param>
         /// <param name="value"></param>