diff --git a/xCAT-server/xCAT-server.spec b/xCAT-server/xCAT-server.spec
index 1ff537109..2060040af 100644
--- a/xCAT-server/xCAT-server.spec
+++ b/xCAT-server/xCAT-server.spec
@@ -190,12 +190,15 @@ rm -rf $RPM_BUILD_ROOT
 %post
 %ifos linux
 ln -sf $RPM_INSTALL_PREFIX0/sbin/xcatd /usr/sbin/xcatd
-if [ -x /usr/lib/lsb/install_initd ]; then
-  /usr/lib/lsb/install_initd /etc/init.d/xcatd
-elif [ -x /sbin/chkconfig ]; then
-  /sbin/chkconfig --add xcatd
-else
-  echo "Unable to register init scripts on this system"
+ 
+if [ "$1" = "1" ]; then #Only if installing for the first time..
+ if [ -x /usr/lib/lsb/install_initd ]; then
+   /usr/lib/lsb/install_initd /etc/init.d/xcatd
+ elif [ -x /sbin/chkconfig ]; then
+   /sbin/chkconfig --add xcatd
+ else
+   echo "Unable to register init scripts on this system"
+ fi
 fi
 if [ "$1" -gt "1" ]; then #only on upgrade...
   #migration issue for monitoring