diff --git a/helix-query.yaml b/helix-query.yaml
index 99a1f580..48f60c9d 100644
--- a/helix-query.yaml
+++ b/helix-query.yaml
@@ -5,6 +5,9 @@ indices:
       - /**
     target: /query-index.json
     properties:
+      lastModified:
+        select: none
+        value: parseTimestamp(headers["last-modified"], "ddd, DD MMM YYYY hh:mm:ss GMT")
       title:
         select: head > meta[property="og:title"]
         value: attribute(el, "content")