diff --git a/Makefile b/Makefile
index 71c4653b..34eff046 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,7 @@ clean:
 	rm -rf build dist *.egg-info/ .tox/ target/ venv/ instance/
 	find . -name '*.pyc' -delete
 	find . -name '__pycache__' -delete
+	find . -name '*~' -delete
 
 test:
 	tox