diff --git a/src/python/loxi/of13/const.py b/src/python/loxi/of13/const.py
index cb58e69..2465a6e 100644
--- a/src/python/loxi/of13/const.py
+++ b/src/python/loxi/of13/const.py
@@ -306,6 +306,7 @@
 OFP_BSN_PKTIN_FLAG_L3_CPU = 512
 OFP_BSN_PKTIN_FLAG_INGRESS_ACL = 1024
 OFP_BSN_PKTIN_FLAG_SFLOW = 2048
+OFP_BSN_PKTIN_FLAG_ARP_CACHE = 4096
 
 ofp_bsn_pktin_flag_map = {
     1: 'OFP_BSN_PKTIN_FLAG_PDU',
@@ -320,6 +321,7 @@
     512: 'OFP_BSN_PKTIN_FLAG_L3_CPU',
     1024: 'OFP_BSN_PKTIN_FLAG_INGRESS_ACL',
     2048: 'OFP_BSN_PKTIN_FLAG_SFLOW',
+    4096: 'OFP_BSN_PKTIN_FLAG_ARP_CACHE',
 }
 
 # Identifiers from group ofp_bsn_port_counter