diff --git a/data/actionsmap/yunohost.yml b/data/actionsmap/yunohost.yml
index c84cc30a8..7261aa989 100644
--- a/data/actionsmap/yunohost.yml
+++ b/data/actionsmap/yunohost.yml
@@ -308,7 +308,7 @@ domain:
                     extra:
                         pattern: &pattern_ttl
                             - !!str ^[0-9]+$
-                            - "pattern_ttl"
+                            - "pattern_number"
 
 
         ### domain_info()
diff --git a/locales/en.json b/locales/en.json
index 858036132..8727e63f5 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -220,6 +220,7 @@
     "unlimit" : "No quota",
     "pattern_domain" : "Must be a valid domain name (e.g. my-domain.org)",
     "pattern_listname" : "Must be alphanumeric and underscore characters only",
+    "pattern_number": "Must be a positive number",
     "pattern_port" : "Must be a valid port number (i.e. 0-65535)",
     "pattern_port_or_range" : "Must be a valid port number (i.e. 0-65535) or range of ports (e.g. 100:200)",
     "pattern_backup_archive_name" : "Must be a valid filename with alphanumeric and -_. characters only",