diff --git a/Makefile b/Makefile
index 0c5c8ec..f27a118 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,8 @@
+.PHONY: test
+
 test:
 	py.test tests
 
-.PHONY: init test
\ No newline at end of file
+
+clean:
+	find . -name '.pytest_cache' -exec rm -rf {} +
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29