diff --git a/src/confd/yang/infix-ip@2023-09-14.yang b/src/confd/yang/infix-ip@2023-09-14.yang
index 2cbd816b..c92e15b5 100644
--- a/src/confd/yang/infix-ip@2023-09-14.yang
+++ b/src/confd/yang/infix-ip@2023-09-14.yang
@@ -50,6 +50,10 @@ module infix-ip {
     }
   }
 
+  deviation "/if:interfaces/if:interface/ip:ipv4/ip:mtu" {
+    deviate not-supported;
+  }
+
   deviation "/if:interfaces/if:interface/ip:ipv4/ip:address/ip:subnet/ip:netmask" {
     deviate not-supported;
   }
@@ -58,6 +62,10 @@ module infix-ip {
     deviate not-supported;
   }
 
+  deviation "/if:interfaces/if:interface/ip:ipv6/ip:mtu" {
+    deviate not-supported;
+  }
+
   deviation "/if:interfaces/if:interface/ip:ipv6/ip:address/ip:status" {
     deviate not-supported;
   }