diff --git a/data/actionsmap/yunohost.yml b/data/actionsmap/yunohost.yml
index 853c4e386..92b7d547d 100644
--- a/data/actionsmap/yunohost.yml
+++ b/data/actionsmap/yunohost.yml
@@ -1198,6 +1198,13 @@ tools:
                         pattern: *pattern_password
                         required: True
 
+        ### tools_maindomain()
+        maindomain:
+            action_help: Get main domain
+            api: GET /domains/main
+            configuration:
+                authenticate: all
+
         ### tools_maindomain()
         maindomain:
             action_help: Main domain change tool