diff --git a/dyndns.py b/dyndns.py
index bd2bcd486..5d5257815 100644
--- a/dyndns.py
+++ b/dyndns.py
@@ -52,7 +52,7 @@ def dyndns_subscribe(subscribe_host="dyndns.yunohost.org", domain=None, key=None
     try:
         if requests.get('http://%s/test/%s' % (subscribe_host, domain)).status_code != 200:
             raise MoulinetteError(errno.EEXIST, m18n.n('dyndns_unavailable'))
-    except ConnectionError:
+    except requests.ConnectionError:
         raise MoulinetteError(errno.ENETUNREACH, m18n.n('no_internet_connection'))
 
     if key is None:
diff --git a/tools.py b/tools.py
index 2b13c7141..ed92bd9de 100644
--- a/tools.py
+++ b/tools.py
@@ -191,8 +191,7 @@ def tools_maindomain(auth, old_domain=None, new_domain=None, dyndns=False):
             raise MoulinetteError(errno.EPERM,
                                   m18n.n('maindomain_change_failed'))
 
-    if dyndns: dyndns_subscribe(domain=new_domain)
-    elif len(new_domain.split('.')) >= 3:
+    if dyndns and len(new_domain.split('.')) >= 3:
         try:
             r = requests.get('http://dyndns.yunohost.org/domains')
         except ConnectionError: