diff --git a/lib/ansible/plugins/vars/host_group_vars.py b/lib/ansible/plugins/vars/host_group_vars.py
index 2fa99fe013..9612b2f4b9 100644
--- a/lib/ansible/plugins/vars/host_group_vars.py
+++ b/lib/ansible/plugins/vars/host_group_vars.py
@@ -42,6 +42,7 @@ from ansible.utils.vars import combine_vars
 
 FOUND = {}
 
+
 class VarsModule(BaseVarsPlugin):
 
     def get_vars(self, loader, path, entities, cache=True):