diff --git a/shadowsocks.sh b/shadowsocks.sh
index 77cb30b..349b7d5 100644
--- a/shadowsocks.sh
+++ b/shadowsocks.sh
@@ -155,6 +155,8 @@ function install(){
 # Uninstall Shadowsocks
 function uninstall_shadowsocks(){
     killall ssserver
+    # delete config file
+    rm -f /etc/config.json
     pip uninstall shadowsocks
 }