diff --git a/test/per_router/test_peer_caching.py b/test/per_router/test_peer_caching.py
index f455619d1debbda244598f254ac7acd15292bdbb..3111f1a3297b5a122d5ef95994bf0cf5e5251f44 100644
--- a/test/per_router/test_peer_caching.py
+++ b/test/per_router/test_peer_caching.py
@@ -60,6 +60,7 @@ def test_ix_public_peers(netconf):
         jsonschema.validate(p, schema)
         print(p)
 
+
 def test_vpn_rr_peers(netconf):
 
     # there are actually no v6 addresses, pattern could be ommitted