diff --git a/themes/book/layouts/404.html b/themes/book/layouts/404.html
index a672ea8..3f76ed4 100644
--- a/themes/book/layouts/404.html
+++ b/themes/book/layouts/404.html
@@ -29,7 +29,7 @@ <h3>
     </main>
 
     {{ partial "docs/inject/body" . }}
-    
+    {{ template "_internal/google_analytics_async.html" . }}
   </body>
 
   </html>