diff --git a/xCAT-server/sbin/runcmdinstaller b/xCAT-server/sbin/runcmdinstaller
index d194d3c00..438db3f31 100755
--- a/xCAT-server/sbin/runcmdinstaller
+++ b/xCAT-server/sbin/runcmdinstaller
@@ -7,11 +7,16 @@
 awk  -v argc="$#" -v node="$1" -v cmd="$2" 'BEGIN {
 port = 3001
 action = "sh"
-if( node=="-h" || argc !=2 || ! node || ! cmd){
+if(node=="-h"){
   print "Usage:\n\n   runcmdinstaller <node> \"<command>\"\n"
   print           "   make sure all the commands are quoted by \"\"\n";
   exit 0;
 }
+if(argc !=2 || ! node || ! cmd){
+  print "Usage:\n\n   runcmdinstaller <node> \"<command>\"\n"
+  print           "   make sure all the commands are quoted by \"\"\n";
+  exit 1;
+}
 
 ns = "/inet/tcp/0/" node "/" port