diff --git a/script/msg_gateway_start.sh b/script/msg_gateway_start.sh
index f09973d84..88e1aea08 100755
--- a/script/msg_gateway_start.sh
+++ b/script/msg_gateway_start.sh
@@ -31,7 +31,7 @@ fi
 sleep 1
 cd ${msg_gateway_binary_root}
 for ((i = 0; i < ${#ws_ports[@]}; i++)); do
-  nohup ./${msg_gateway_name} -port ${rpc_ports[$i]} -ws_port ${ws_ports[$i]} -prometheus_port ${prome_ports[$i]} >>../logs/openIM.log 2>&1 &
+  nohup ./${msg_gateway_name} --port ${rpc_ports[$i]} --ws_port ${ws_ports[$i]} --prometheus_port ${prome_ports[$i]} >>../logs/openIM.log 2>&1 &
 done
 
 #Check launched service process