diff --git a/script/msg_transfer_start.sh b/script/msg_transfer_start.sh
index 746cf3342..e4f703fcd 100755
--- a/script/msg_transfer_start.sh
+++ b/script/msg_transfer_start.sh
@@ -25,7 +25,7 @@ for ((i = 0; i < ${msg_transfer_service_num}; i++)); do
       prome_port=${prome_ports[$i]}
       cmd="nohup ./${msg_transfer_name}"
       if [ $prome_port != "" ]; then
-        cmd="$cmd -prometheus_port $prome_port"
+        cmd="$cmd --prometheus_port $prome_port"
       fi
       $cmd >>../logs/openIM.log 2>&1 &
 done
diff --git a/script/push_start.sh b/script/push_start.sh
index cbaffe7be..8c9998bee 100644
--- a/script/push_start.sh
+++ b/script/push_start.sh
@@ -25,7 +25,7 @@ sleep 1
 cd ${push_binary_root}
 
 for ((i = 0; i < ${#rpc_ports[@]}; i++)); do
-  nohup ./${push_name} -port ${rpc_ports[$i]} -prometheus_port ${prome_ports[$i]} >>../logs/openIM.log 2>&1 &
+  nohup ./${push_name} --port ${rpc_ports[$i]} --prometheus_port ${prome_ports[$i]} >>../logs/openIM.log 2>&1 &
 done
 
 sleep 3
diff --git a/script/start_rpc_service.sh b/script/start_rpc_service.sh
index 4f8f22508..d30511f8d 100644
--- a/script/start_rpc_service.sh
+++ b/script/start_rpc_service.sh
@@ -70,9 +70,13 @@ for ((i = 0; i < ${#service_filename[*]}; i++)); do
   #Start related rpc services based on the number of ports
   for ((j = 0; j < ${#service_ports[*]}; j++)); do
     #Start the service in the background
-    cmd="./${service_filename[$i]} -port ${service_ports[$j]} -prometheus_port ${prome_ports[$j]}"
+    if [ -z "${prome_ports[$j]}" ]; then
+      cmd="./${service_filename[$i]} --port ${service_ports[$j]}"
+    else
+      cmd="./${service_filename[$i]} --port ${service_ports[$j]} --prometheus_port ${prome_ports[$j]}"
+    fi
     if [ $i -eq 0 -o $i -eq 1 ]; then
-      cmd="./${service_filename[$i]} -port ${service_ports[$j]}"
+      cmd="./${service_filename[$i]} --port ${service_ports[$j]}"
     fi
     echo $cmd
     nohup $cmd >>../logs/openIM.log 2>&1 &