diff --git a/index.js b/index.js
index 9660945..83a50a1 100644
--- a/index.js
+++ b/index.js
@@ -143,7 +143,13 @@ export default function createConfig ({
   }
   if (needsPrettier) {
     // Prettier recommends an explicit configuration file to let the editor know that it's used.
-    files['.prettierrc.json'] = prettierrcs[styleGuide] || '{}'
+    files['.prettierrc.json'] = prettierrcs[styleGuide] || `{
+  "semi": false,
+  "tabWidth": 2,
+  "singleQuote": true,
+  "printWidth": 100,
+  "trailingComma": "none"
+}`
   }
 
   return {