diff --git a/test/test_infinera_classifier.py b/test/test_infinera_classifier.py
index d1eb97821e8ed6dfc778ac6c4977e18902ce8eb4..c4d2488fc41e91d9b2f782b048da16f0b2547553 100644
--- a/test/test_infinera_classifier.py
+++ b/test/test_infinera_classifier.py
@@ -8,6 +8,7 @@ DEFAULT_REQUEST_HEADERS = {
     "Accept": ["application/json"]
 }
 
+
 def test_trap_metadata(client):
     rv = client.get(
         '/classifier/infinera-lambda-info/'
diff --git a/tox.ini b/tox.ini
index f08e8f1c3512dd36edca87ebb6b20de3a3212053..8d569cbc25d09e7397d4dc13d97de759cdcbf228 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,4 +17,5 @@ commands =
     coverage report --fail-under 75
     # coverage report --fail-under 80
     flake8
+    sphinx-build -M html docs/source docs/build