diff --git a/mock/c7.1708.u.ppc.cfg b/mock/c7.1708.u.ppc.cfg
index 4fd0d8f..4c4e91d 100644
--- a/mock/c7.1708.u.ppc.cfg
+++ b/mock/c7.1708.u.ppc.cfg
@@ -31,6 +31,8 @@ assumeyes=1
 syslog_ident=mock
 syslog_device=
 
+exclude=*.ppc64
+
 # repos
 [c7.1708.u.ppc]
 name=c7.1708.u.ppc