diff --git a/roles/copr/backend/files/provision/files/mock/site-defaults.cfg b/roles/copr/backend/files/provision/files/mock/site-defaults.cfg
index b5d29c3d83..0cd74e5c43 100644
--- a/roles/copr/backend/files/provision/files/mock/site-defaults.cfg
+++ b/roles/copr/backend/files/provision/files/mock/site-defaults.cfg
@@ -3,6 +3,8 @@
 config_opts['plugin_conf']['package_state_enable'] = False
 config_opts['plugin_conf']['ccache_enable'] = False
 
+config_opts['plugin_conf']['yum_cache_enable'] = False
+
 config_opts['plugin_conf']['root_cache_enable'] = True
 # when used build ignores additional buildroot packages, reason unknown
 # config_opts['plugin_conf']['root_cache_opts']['age_check'] = False