diff --git a/xCAT-server/xCAT-server.spec b/xCAT-server/xCAT-server.spec
index 9ad657273..aebb63f22 100644
--- a/xCAT-server/xCAT-server.spec
+++ b/xCAT-server/xCAT-server.spec
@@ -21,6 +21,7 @@ AutoReqProv: no
 %ifos linux
 BuildArch: noarch
 Requires: perl-IO-Socket-SSL perl-XML-Simple perl-IO-Tty perl-Crypt-SSLeay make
+Obsoletes: atftp-xcat
 %endif
 
 Requires: perl-xCAT >= %{epoch}:%(cat Version|cut -d. -f 1,2)
diff --git a/xCAT/xCAT.spec b/xCAT/xCAT.spec
index a96e021c2..9ae0bf891 100644
--- a/xCAT/xCAT.spec
+++ b/xCAT/xCAT.spec
@@ -29,7 +29,6 @@ Requires: dhcp httpd nfs-utils expect nmap fping bind perl-XML-Parser vsftpd
 # No additional requires for zLinux right now
 %else
 # yaboot-xcat is pulled in so any MN can manage ppc nodes
-Obsoletes: atftp-xcat
 Requires: /etc/xinetd.d/tftp
 Requires: conserver-xcat yaboot-xcat perl-Net-Telnet
 %endif
diff --git a/xCATsn/xCATsn.spec b/xCATsn/xCATsn.spec
index fbb642412..98d201d48 100644
--- a/xCATsn/xCATsn.spec
+++ b/xCATsn/xCATsn.spec
@@ -32,7 +32,6 @@ Requires: perl-IO-Stty
 %ifarch s390x
 # No additional requires for zLinux right now
 %else
-Obsoletes: atftp-xcat
 Requires: /etc/xinetd.d/tftp
 Requires: conserver-xcat yaboot-xcat perl-Net-Telnet
 %endif