diff --git a/manifest.yaml b/manifest.yaml
index 2ab7f93..75398ec 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -36,6 +36,7 @@ projects:
     title: 'English Greek Lexicon'
     versification: 'ufw'
     identifier: 'ugl'
+    format: 'json'
     sort: 1
     path: './ugl/v0/content'
     categories: [ 'lex-nt' ]
\ No newline at end of file