diff --git a/xCAT/xCAT.spec b/xCAT/xCAT.spec
index 9a2fe387b..4f03f8854 100644
--- a/xCAT/xCAT.spec
+++ b/xCAT/xCAT.spec
@@ -35,7 +35,7 @@ Requires: atftp-xcat conserver-xcat yaboot-xcat perl-Net-Telnet
 Requires: perl-IO-Stty
 %endif
 %ifarch ppc64 x86_64
-Requires: openslp-xcat
+Requires: openslp-xcat mod_ssl.so()(64bit)
 %endif
 %endif