diff --git a/packages/babel-preset-es2015/README.md b/packages/babel-preset-es2015/README.md
index b90a9c57a5..588606a944 100644
--- a/packages/babel-preset-es2015/README.md
+++ b/packages/babel-preset-es2015/README.md
@@ -43,12 +43,12 @@ require("babel-core").transform("code", {
 ```
 {
   presets: [
-    ["es2015", {loose: true, modules: "amd"}]
+    ["es2015", {"loose": true, "modules": "amd"}]
   ]
 }
 {
   presets: [
-    ["es2015", {loose: true, modules: false}]
+    ["es2015", {"loose": true, "modules": false}]
   ]
 }
 ```