diff --git a/mock/c7.1908.u.ppc.cfg b/mock/c7.1908.u.ppc.cfg
index f20996e..8c3a99d 100644
--- a/mock/c7.1908.u.ppc.cfg
+++ b/mock/c7.1908.u.ppc.cfg
@@ -19,6 +19,7 @@ config_opts['macros']['%_host'] = "ppc-redhat-linux-gnu"
 config_opts['plugin_conf']['ccache_enable'] = False
 
 config_opts['yum.conf'] = """
+exclude=kernel*4.14.0*
 [main]
 cachedir=/var/cache/yum
 debuglevel=1