diff --git a/.gitignore b/.gitignore
index 4c44f95..4780a71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,9 @@ build/
 dist/
 *.egg-info/
 
+docs/_build/
+docs/api/
+
 htmlcov/
 .coverage
 
diff --git a/Makefile b/Makefile
index ddc3319..d973043 100644
--- a/Makefile
+++ b/Makefile
@@ -46,6 +46,7 @@ clean:
 	rm -rf build dist *.egg-info
 	rm -rf $(VENV)
 	rm -rf $(DOCS_OUT)
+	rm -rf $(DOCS_SRC)/api
 	find . -type f -name *.pyc -delete
 	find . -type d -name __pycache__ -delete
 	# coverage