diff --git a/openflow_input/standard-1.3 b/openflow_input/standard-1.3
index f697c42..bb85231 100644
--- a/openflow_input/standard-1.3
+++ b/openflow_input/standard-1.3
@@ -290,6 +290,7 @@
     OFPR_BSN_DEST_HOST_UNREACHABLE = 135,
     OFPR_BSN_DEST_PORT_UNREACHABLE = 136,
     OFPR_BSN_FRAGMENTATION_REQUIRED = 137,
+    OFPR_BSN_ARP = 139,
 };
 
 enum ofp_flow_removed_reason(wire_type=uint8_t) {