diff --git a/Makefile b/Makefile
index 6ceb5327..92a282c7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,8 @@
 all:
 	npm install
 
+clean:
+	rm -rf node_modules/*
+
 check:
 	./run_tests.sh