diff --git a/apps.json b/apps.json
index b09b00e1..83e416b1 100644
--- a/apps.json
+++ b/apps.json
@@ -2,6 +2,9 @@
     "13ft": {
         "category": "reading",
         "level": 6,
+        "potential_alternative_to": [
+            "12ft"
+        ],
         "state": "working",
         "url": "https://github.com/YunoHost-Apps/13ft_ynh"
     },