diff --git a/src/guide/render-function.md b/src/guide/render-function.md
index 546cf30543..8024a3ac60 100644
--- a/src/guide/render-function.md
+++ b/src/guide/render-function.md
@@ -108,7 +108,7 @@ createElement(
   // {String | Array}
   // Children VNodes. Optional.
   [
-    createElement('h1', 'hello world')
+    createElement('h1', 'hello world'),
     createElement(MyComponent, {
       props: {
         someProp: 'foo'