diff --git a/.nycrc.yml b/.nycrc.yml
index 8034126..689e93b 100644
--- a/.nycrc.yml
+++ b/.nycrc.yml
@@ -4,3 +4,4 @@ include:
 reporter:
   - html
   - text-summary
+useSpawnWrap: true
diff --git a/package.json b/package.json
index c096cbe..6146401 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   ],
   "scripts": {
     "lint": "standard && require-lint",
-    "unit": "nyc npx mocha",
+    "unit": "nyc mocha",
     "test": "npm run lint && npm run unit"
   },
   "dependencies": {