diff --git a/nodes/sophie/vmhost.py b/nodes/sophie/vmhost.py
index 092e0b2..2c63142 100644
--- a/nodes/sophie/vmhost.py
+++ b/nodes/sophie/vmhost.py
@@ -69,7 +69,7 @@ nodes['sophie.vmhost'] = {
             'version': 4,
             'shares': {
                 '/srv/nas': {
-                    '172.19.164.0/24': 'ro,all_squash,anonuid=65534,anongid=65534,no_subtree_check',
+                    '172.19.164.0/23': 'ro,all_squash,anonuid=65534,anongid=65534,no_subtree_check',
                 },
             },
         },