diff --git a/xCAT-server/share/xcat/netboot/centos/kvm.centos6.pkglist b/xCAT-server/share/xcat/netboot/centos/kvm.centos6.pkglist
index e04f5aa7a..14a5f7ee1 100644
--- a/xCAT-server/share/xcat/netboot/centos/kvm.centos6.pkglist
+++ b/xCAT-server/share/xcat/netboot/centos/kvm.centos6.pkglist
@@ -1,11 +1,11 @@
-bash 
+bash
 screen
 dracut-network
 nfs-utils
 openssl
-dhclient 
-kernel 
-openssh-server 
+dhclient
+kernel
+openssh-server
 openssh-clients
 wget
 vim-minimal