diff --git a/pubtools/_pulp/step.py b/pubtools/_pulp/step.py
index 2715e1e7..7d0f9df1 100644
--- a/pubtools/_pulp/step.py
+++ b/pubtools/_pulp/step.py
@@ -6,6 +6,7 @@
 LOG = logging.getLogger("pubtools.pulp")
 UNSET = object()
 
+
 class StepDecorator(object):
     """Implementation of PulpTask.step decorator. See that method for more info."""