diff --git a/yunohost_dyndns.py b/yunohost_dyndns.py
index 5d6cdb5c..63554e7a 100644
--- a/yunohost_dyndns.py
+++ b/yunohost_dyndns.py
@@ -144,7 +144,7 @@ def dyndns_installcron():
 
     """
     os.system("touch /etc/cron.d/yunohost-dyndns")
-    os.system("echo '*/30 * * * * root yunohost dyndns update -u >>/dev/null' >/etc/cron.d/yunohost-dyndns")
+    os.system("echo '*/30 * * * * root yunohost dyndns update >> /dev/null' >/etc/cron.d/yunohost-dyndns")
     win_msg(_("DynDNS cron installed"))