diff --git a/nodes/ovh.secondary.py b/nodes/ovh.secondary.py
index 603c30e..3bdeca4 100644
--- a/nodes/ovh.secondary.py
+++ b/nodes/ovh.secondary.py
@@ -15,7 +15,7 @@
                 'interface': 'eth0',
                 'ipv4': '135.125.239.125/32',
                 'gateway4': '135.125.238.1',
-                'ipv6': '2001:41d0:701:1100::3dea/64',
+                'ipv6': '2001:41d0:701:1100::3dea/56',
                 'gateway6': '2001:41d0:701:1100::1',
             },
         },