diff --git a/documentation/docs/02-template-syntax/02-basic-markup.md b/documentation/docs/02-template-syntax/02-basic-markup.md
index 7656a599bebc..281790ac71d2 100644
--- a/documentation/docs/02-template-syntax/02-basic-markup.md
+++ b/documentation/docs/02-template-syntax/02-basic-markup.md
@@ -113,11 +113,12 @@ Text can also contain JavaScript expressions:
 
 > If you're using a regular expression (`RegExp`) [literal notation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#literal_notation_and_constructor), you'll need to wrap it in parentheses.
 
+<!-- prettier-ignore -->
 ```svelte
 <h1>Hello {name}!</h1>
 <p>{a} + {b} = {a + b}.</p>
 
-<div>{/^[A-Za-z ]+$/.test(value) ? x : y}</div>
+<div>{(/^[A-Za-z ]+$/).test(value) ? x : y}</div>
 ```
 
 ## Comments