diff --git a/setup.sh b/setup.sh
index 4e7b924..8d2a70a 100755
--- a/setup.sh
+++ b/setup.sh
@@ -9,7 +9,7 @@ change_var_value () {
 # docker run -p 80:80/tcp -p 443:443/tcp -p 1935:1935/tcp -p 5066:5066/tcp -p 2202:2202 -p 32750-32768:32750-32768/udp --cap-add=NET_ADMIN ffdixon/play_win -h 192.168.0.130
 # docker run -p 80:80/tcp -p 443:443/tcp -p 1935:1935/tcp -p 5066:5066/tcp -p 2202:2202 -p 32750-32768:32750-32768/udp --cap-add=NET_ADMIN ffdixon/play_win -h 192.168.10.186
 
-while getopts "eh:" opt; do
+while getopts ":eh:s:" opt; do
   case $opt in
     e)
       env