diff --git a/Makefile b/Makefile
index 85e0f06..642b9d7 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ docs:
 	cd docs ; $(MAKE) html
 
 test:
-	tox
+	tox --skip-missing-interpreters
 
 dist: test
 	python setup.py sdist