diff --git a/Makefile b/Makefile
index 864cfaf7..4c8587b7 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,7 @@ clean: ## Clean
 	rm -rf dist
 	rm -rf build
 	rm -rf *.egg-info
+	rm -rf html
 
 build: clean ## Build PIPy Package
 	python setup.py sdist bdist_wheel