diff --git a/Makefile b/Makefile
index dc38edd..aba5a5a 100644
--- a/Makefile
+++ b/Makefile
@@ -21,5 +21,5 @@ clean: clean_build
 web/static/css/dist:
 	mkdir -p web/static/css/dist
 
-web/static/css/dist/bootstrap: node_modules/bootstrap web/static/css/dist
+web/static/css/dist/bootstrap: node_modules/bootstrap | web/static/css/dist
 	ln -s $(abspath node_modules/bootstrap/dist/css) web/static/css/dist/bootstrap