diff --git a/index.html b/index.html
index 6f4ca04..ed245cc 100644
--- a/index.html
+++ b/index.html
@@ -2,6 +2,19 @@
 title: Welcome to wiki.mbirth.de
 layout: default
 ---
+<script type="application/ld+json">
+{
+    "@context": "http://schema.org",
+    "@type": "WebSite",
+    "url": "http://wiki.mbirth.de/",
+    "potentialAction": {
+        "@type": "SearchAction",
+        "target": "http://wiki.mbirth.de/?q={search_term_string}",
+        "query-input": "required name=search_term_string"
+    }
+}
+</script>
+
 <h3>Latest posts ({{ site.posts | size }} total):</h3>
 
 <ul>