diff --git a/install.sh b/install.sh
index 5630d84..c41869b 100644
--- a/install.sh
+++ b/install.sh
@@ -38,7 +38,7 @@ install(){
 
 
 get_listen_port(){
-    local port=$(jq  ./config/config.json  ".inbounds[0].listen_port")
+    local port=$(jq -r ".inbounds[0].listen_port" ./config/config.json)
     echo $port
 }