diff --git a/Makefile b/Makefile
index a0be476e5..68cb2c1b0 100644
--- a/Makefile
+++ b/Makefile
@@ -23,6 +23,10 @@ node_modules: .npmrc package.json
 .npmrc:
 	command gup .npmrc
 
+.PHONY: clean
+clean:
+	rm -rf node_modules
+
 .PHONY: %.lock
 %.lock:
 	[ -e $@ ] || touch $@