diff --git a/p4src/settings.p4 b/p4src/settings.p4
index 975962c..d719176 100644
--- a/p4src/settings.p4
+++ b/p4src/settings.p4
@@ -10,6 +10,7 @@
 #define ROUTING_TABLE_SIZE 64                               /* maximum routes per protocol */
 #define ADDRESS_TABLE_SIZE 64                               /* maximum number of addresses per protocol */
 #define NDP_TABLE_SIZE 64                                   /* maximum number of multicast groups */
-#define ICMP6_TABLE_SIZE 64                                   /* maximum number of multicast groups */
+#define ICMP6_TABLE_SIZE 64                                 /* icmp6 handlers */
+#define NAT64_TABLE_SIZE 64                                 /* nat64 and nat46 entries */
 
 #endif