diff --git a/docs/guides/rendering.md b/docs/guides/rendering.md
index a1bf773ad..bf59863aa 100644
--- a/docs/guides/rendering.md
+++ b/docs/guides/rendering.md
@@ -87,7 +87,7 @@ function renderMark(props, editor, next) {
case 'underline':
return {children}
case 'strikethrough':
- return {children}
+ return {children}
default:
return next()
}