diff --git a/src/pages/contact.astro b/src/pages/contact.astro
index e0a3fd9..7a45dad 100644
--- a/src/pages/contact.astro
+++ b/src/pages/contact.astro
@@ -77,6 +77,13 @@ const turnstileSiteKey = import.meta.env.PUBLIC_TURNSTILE_SITE_KEY ?? "";
                 Send a message
               </h2>
               <form class="mt-4 space-y-4" action="/api/contact" method="post" data-contact-form>
+                {
+                  !turnstileSiteKey && (
+                    <p class="rounded-md border border-amber-300 bg-amber-50 px-3 py-2 text-sm font-semibold text-amber-900">
+                      Turnstile is not configured. Set PUBLIC_TURNSTILE_SITE_KEY and redeploy to enable the form.
+                    </p>
+                  )
+                }
                 <div>
                   <label class="block text-sm font-semibold text-black">Name</label>
                   <input