diff --git a/rollup.md b/rollup.md
index 499cc2a7a..13402d162 100644
--- a/rollup.md
+++ b/rollup.md
@@ -88,7 +88,7 @@ export default {
     file: 'bundle.js',
     format: 'cjs'
   },
-  plugins [ json() ]
+  plugins: [ json() ]
 }
 
 ```