diff --git a/scripts/lib.sh b/scripts/lib.sh
index 9a0178cdd..d776ed184 100755
--- a/scripts/lib.sh
+++ b/scripts/lib.sh
@@ -66,7 +66,7 @@ fi
 
 PIPSRC="https://pypi.python.org/simple"
 if [ "$LOCAL_ADDR" != "common" ];then
-    PIPSRC="https://pypi.tuna.tsinghua.edu.cn/simple"
+    PIPSRC="https://pypi.tuna.tsinghua.edu.cn/simple/"
 fi
 
 echo "local:${LOCAL_ADDR}"