diff --git a/data/actionsmap/yunohost.yml b/data/actionsmap/yunohost.yml
index 8355472ce..a34d2af11 100644
--- a/data/actionsmap/yunohost.yml
+++ b/data/actionsmap/yunohost.yml
@@ -302,9 +302,9 @@ domain:
             arguments:
                 domain:
                     help: Target domain
-                -ttl:
-                    full: --time-to-live
-                    help: Time to live in secound before DNS servers update this information. Without this option, ttl is set to 3600s, one hour.
+                -t:
+                    full: --ttl
+                    help: Time To Live (TTL) is second before DNS servers update. Default is 3600 second (i.e. 1 hour).
                     extra:
                         pattern: &pattern_ttl
                             - !!str ^[0-9]+$
diff --git a/src/yunohost/domain.py b/src/yunohost/domain.py
index 3586a761c..a7f4befae 100644
--- a/src/yunohost/domain.py
+++ b/src/yunohost/domain.py
@@ -220,7 +220,7 @@ def domain_remove(auth, domain, force=False):
     msignals.display(m18n.n('domain_deleted'), 'success')
 
 
-def domain_dns_conf(domain, time_to_live):
+def domain_dns_conf(domain, ttl):
     """
     Generate DNS configuration for a domain
 
@@ -229,7 +229,7 @@ def domain_dns_conf(domain, time_to_live):
         time to live -- Time to live
     """
 
-    ttl = 3600 if time_to_live is None else time_to_live
+    ttl = 3600 if ttl is None else ttl
 
     ip4 = urlopen("http://ip.yunohost.org").read().strip()