diff --git a/docs_headless/astro.config.mjs b/docs_headless/astro.config.mjs
index 527a7fd9076..a5759097eed 100644
--- a/docs_headless/astro.config.mjs
+++ b/docs_headless/astro.config.mjs
@@ -344,6 +344,9 @@ export default defineConfig({
     },
     vite: {
         plugins: [tailwindcss()],
+        ssr: {
+            noExternal: ['zod'],
+        },
     },
     base: '/ra-core/',
     site: 'https://marmelab.com',
diff --git a/examples/ra-offline/package.json b/examples/ra-offline/package.json
index f2adee64883..c878f93bfbe 100644
--- a/examples/ra-offline/package.json
+++ b/examples/ra-offline/package.json
@@ -42,4 +42,4 @@
     "vite-plugin-pwa": "^1.2.0"
   },
   "name": "ra-offline"
-}
\ No newline at end of file
+}