diff --git a/GumpTechDocument.md b/GumpTechDocument.md
index c2324e6..f9c9670 100644
--- a/GumpTechDocument.md
+++ b/GumpTechDocument.md
@@ -5,7 +5,7 @@ SDK下载地址
 -------------------------------
 
 Android SDK 下载地址    [here](http://s3-ap-southeast-1.amazonaws.com/sletsgame/sdk/GumpSDK-Android.rar)         
-IOS SDk     下载地址：[click here]()     
+IOS SDk 下载地址：[click here]()