diff --git a/package.json b/package.json
index 7206744..b9c38c3 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,9 @@
 			"istanbul"
 		]
 	},
+	"nyc": {
+		"exclude": "lib/**"
+	},
 	"devDependencies": {
 		"@babel/cli": "^7.8.4",
 		"@babel/core": "^7.9.0",