diff --git a/xCAT-server/sbin/xcatconfig b/xCAT-server/sbin/xcatconfig
index 66210f745..16ec88d43 100755
--- a/xCAT-server/sbin/xcatconfig
+++ b/xCAT-server/sbin/xcatconfig
@@ -229,7 +229,7 @@ chomp $::root;
 #
 #
 if (xCAT::Utils->isMN()) {
-  if ($::FORCE || $::genSSHNodeHostKeys || $::INITIALINSTALL || $::UPDATEINSTALL )
+  if ($::FORCE || $::genSSHNodeHostKeys || $::INITIALINSTALL )
   {
       &genSSHNodeHostKey;
   }