diff --git a/xCAT/xCAT.spec b/xCAT/xCAT.spec
index f52bb3a90..93c0ff9cb 100644
--- a/xCAT/xCAT.spec
+++ b/xCAT/xCAT.spec
@@ -58,10 +58,12 @@ Requires: /usr/bin/ssh
 %if %nots390x
 Requires: /usr/sbin/in.tftpd
 Requires: xCAT-buildkit
-# Stty is only needed for rcons on ppc64 nodes, but for mixed clusters require it on both x and p
+# Stty is only needed for rcons on ppc64 nodes
+%ifarch ppc64
 Requires: perl-IO-Stty
 %endif
 %endif
+%endif
 
 %ifos linux
 Requires: goconserver
diff --git a/xCATsn/xCATsn.spec b/xCATsn/xCATsn.spec
index 6e10a4756..31775b764 100644
--- a/xCATsn/xCATsn.spec
+++ b/xCATsn/xCATsn.spec
@@ -41,10 +41,12 @@ Requires: /usr/sbin/dhcpd
 Requires: /usr/bin/ssh
 %ifnarch s390x
 Requires: /usr/sbin/in.tftpd
-# Stty is only needed for rcons on ppc64 nodes, but for mixed clusters require it on both x and p
+# Stty is only needed for rcons on ppc64 nodes
+%ifarch ppc64
 Requires: perl-IO-Stty
 %endif
 %endif
+%endif
 
 %ifos linux
 Requires: goconserver