diff --git a/Makefile b/Makefile
index cc948f1..efdce66 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 .PHONY: test
-test: clean 
+test: clean lint
 	@py.test -s -p no:doubles test
 
 .PHONY: lint
diff --git a/doubles/pytest_plugin.py b/doubles/pytest_plugin.py
index 35ca703..ff842f0 100644
--- a/doubles/pytest_plugin.py
+++ b/doubles/pytest_plugin.py
@@ -2,6 +2,7 @@
 
 from doubles.lifecycle import teardown, verify
 
+
 @pytest.hookimpl(hookwrapper=True)
 def pytest_pyfunc_call(pyfuncitem):
     outcome = yield