diff --git a/package.json b/package.json
index a0e7543..ad15cce 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   },
   "scripts": {
     "build": "cross-env NODE_ENV=production node build.js",
-    "dev": " cross-env NODE_ENV=development node build.js",
+    "dev": "cross-env NODE_ENV=development node build.js",
     "test": "yarn build && cd test && mocha 'index.js' --no-timeout --exit",
     "fmt": "prettier --write .",
     "fmt:check": "prettier --check ."