diff --git a/xCAT-server/share/xcat/netboot/centos/compute.centos6.pkglist b/xCAT-server/share/xcat/netboot/centos/compute.centos6.pkglist
index e2f8a13a7..b53ec0f57 100644
--- a/xCAT-server/share/xcat/netboot/centos/compute.centos6.pkglist
+++ b/xCAT-server/share/xcat/netboot/centos/compute.centos6.pkglist
@@ -16,3 +16,4 @@ rpm
 e2fsprogs
 parted
 bc
+ntp