diff --git a/packages/astro/src/runtime/server/hydration.ts b/packages/astro/src/runtime/server/hydration.ts
index dd2b2d2fcf05..4d8ab48f0b68 100644
--- a/packages/astro/src/runtime/server/hydration.ts
+++ b/packages/astro/src/runtime/server/hydration.ts
@@ -118,7 +118,7 @@ export async function generateHydrateScript(
 		  )}"), import("${await result.resolve(renderer.clientEntrypoint)}")]);
   return (el, children) => hydrate(el)(Component, ${serializeProps(
 		props
-	)}, children, ${JSON.stringify(hydrate)});
+	)}, children, ${JSON.stringify({ client: hydrate })});
 `
 		: `await import("${await result.resolve(componentUrl)}");
   return () => {};
diff --git a/packages/integrations/react/client-v17.js b/packages/integrations/react/client-v17.js
index a2635be6b7d9..32ba875586cc 100644
--- a/packages/integrations/react/client-v17.js
+++ b/packages/integrations/react/client-v17.js
@@ -2,7 +2,7 @@ import { createElement } from 'react';
 import { render, hydrate } from 'react-dom';
 import StaticHtml from './static-html.js';
 
-export default (element) => (Component, props, children) =>
+export default (element) => (Component, props, children, { client }) =>
 	{
 		const componentEl = createElement(
 			Component,
diff --git a/packages/integrations/react/client.js b/packages/integrations/react/client.js
index 2236ae40bd4d..0579f4a08d3c 100644
--- a/packages/integrations/react/client.js
+++ b/packages/integrations/react/client.js
@@ -2,7 +2,7 @@ import { createElement } from 'react';
 import { createRoot, hydrateRoot } from 'react-dom/client';
 import StaticHtml from './static-html.js';
 
-export default (element) => (Component, props, children, client) =>
+export default (element) => (Component, props, children, { client }) =>
 	{
 		const componentEl = createElement(
 			Component,