diff --git a/docs/elements/pinheader.mdx b/docs/elements/pinheader.mdx
index db4c79e..7250b38 100644
--- a/docs/elements/pinheader.mdx
+++ b/docs/elements/pinheader.mdx
@@ -15,6 +15,7 @@ import CircuitPreview from "@site/src/components/CircuitPreview"
 <CircuitPreview
   defaultView="schematic"
   code={`export default () => (
+   <board width="30mm" height="10mm">
     <pinheader
       name="J1"
       pinCount={8}
@@ -26,6 +27,7 @@ import CircuitPreview from "@site/src/components/CircuitPreview"
       x={10}
       y={10}
     />
+   </board>
   )
 `}
 />