diff --git a/package.json b/package.json
index f9cb5c0..05ab3df 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
 		"node": ">=4"
 	},
 	"scripts": {
-		"test": "xo && tsc --project types && flow --max-warnings 0 && nyc ava",
+		"test": "xo && tsc --project types && flow --max-warnings=0 && nyc ava",
 		"bench": "matcha benchmark.js",
 		"coveralls": "nyc report --reporter=text-lcov | coveralls"
 	},