diff --git a/mock/c7.1708.u.ppc64.cfg b/mock/c7.1708.u.ppc64.cfg
index a5456d1..8b97299 100644
--- a/mock/c7.1708.u.ppc64.cfg
+++ b/mock/c7.1708.u.ppc64.cfg
@@ -1,7 +1,7 @@
 config_opts['root'] = 'TARGETNAME'
 config_opts['basedir'] = '/var/lib/mock'
 config_opts['target_arch'] = 'ppc64'
-config_opts['legal_host_arches'] = ('ppc64',)
+config_opts['legal_host_arches'] = ('ppc64', 'noarch')
 config_opts['chroot_setup_cmd'] = 'install bash bzip2 coreutils cpio diffutils system-release findutils gawk gcc gcc-c++ grep gzip info make patch redhat-rpm-config rpm-build sed shadow-utils tar unzip util-linux vim-minimal which xz'
 config_opts['dist'] = 'el7'  # only useful for --resultdir variable subst
 
diff --git a/mock/c7.1708.u.ppc64le.cfg b/mock/c7.1708.u.ppc64le.cfg
index 0c1aa2f..081be90 100644
--- a/mock/c7.1708.u.ppc64le.cfg
+++ b/mock/c7.1708.u.ppc64le.cfg
@@ -1,7 +1,7 @@
 config_opts['root'] = 'TARGETNAME'
 config_opts['basedir'] = '/var/lib/mock'
 config_opts['target_arch'] = 'ppc64le'
-config_opts['legal_host_arches'] = ('ppc64le',)
+config_opts['legal_host_arches'] = ('ppc64le', 'noarch')
 config_opts['chroot_setup_cmd'] = 'install bash bzip2 coreutils cpio diffutils system-release findutils gawk gcc gcc-c++ grep gzip info make patch redhat-rpm-config rpm-build sed shadow-utils tar unzip util-linux vim-minimal which xz'
 config_opts['dist'] = 'el7'  # only useful for --resultdir variable subst