diff --git a/docs/platforms/javascript/guides/nextjs/tracing/index.mdx b/docs/platforms/javascript/guides/nextjs/tracing/index.mdx
index f1b03b5783675..166852e21c23a 100644
--- a/docs/platforms/javascript/guides/nextjs/tracing/index.mdx
+++ b/docs/platforms/javascript/guides/nextjs/tracing/index.mdx
@@ -357,19 +357,20 @@ Sentry.init({
 <SplitSection>
 <SplitSectionText>
 
-### Detached spans with `after()`
+### Detached spans with `after()` or `waitUntil()`
 
-If you're using Next.js's [`after()`](https://nextjs.org/docs/app/api-reference/functions/after) and you see multiple root spans (like individual `db` spans) instead of one cohesive trace, your spans are becoming detached.
+If you're using Next.js's [`after()`](https://nextjs.org/docs/app/api-reference/functions/after) or [`waitUntil`](https://vercel.com/docs/functions/functions-api-reference/vercel-functions-package#waituntil) and you see multiple root spans (like individual `db` spans) instead of one cohesive trace, your spans are becoming detached.
 
-This happens when `after()` runs after the response is sent. By then, the request's root span has already ended.
+This happens when `after()` or `waitUntil()` runs after the response is sent. By then, the request's root span has already ended.
 
-Wrap your deferred work with `startSpan` inside the `after()` callback to group all background spans into a single transaction:
+Wrap your deferred work with `startSpan` inside the `after()` or `waitUntil()` callback to group all background spans into a single transaction:
 
 </SplitSectionText>
 <SplitSectionCode>
 
 ```tsx {filename:app/api/webhook/route.ts}
 import { after } from "next/server";
+import { waitUntil } from '@vercel/functions';
 import * as Sentry from "@sentry/nextjs";
 
 export async function POST(request: Request) {
@@ -382,6 +383,13 @@ export async function POST(request: Request) {
     )
   );
 
+  waitUntil(
+    Sentry.startSpan(
+      { name: "webhook.process", op: "task" },
+      () => processWebhook(data)
+    )
+  );
+
   return Response.json({ received: true });
 }
 ```