diff --git a/games/a.yaml b/games/a.yaml
index ae8019bc6..499806ed8 100644
--- a/games/a.yaml
+++ b/games/a.yaml
@@ -303,7 +303,8 @@
   licenses:
   - As-is
   info: Historical source code and documents related to Ambermoon
-  updated: '2023-06-03'
+  added: 2023-06-03
+  updated: 2023-06-03
 
 - name: Ambermoon.net
   type: remake