diff --git a/src/data/site.json b/src/data/site.json
index 67bc0fe..ee1996d 100644
--- a/src/data/site.json
+++ b/src/data/site.json
@@ -2,6 +2,7 @@
     "name": "Eleventonia",
     "description": "A mildly opinionated Eleventy starter",
     "url": "",
+    "lang": "en",
     "githubUrl": "https://github.com/mattdecamp/eleventonia",
     "authorName": "Matt DeCamp",
     "authorHandle": "@mpdecamp",