diff --git a/sys/dev/bnxt/bnxt.h b/sys/dev/bnxt/bnxt.h
--- a/sys/dev/bnxt/bnxt.h
+++ b/sys/dev/bnxt/bnxt.h
@@ -98,7 +98,7 @@
 				 CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \
 				 CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP)
 
-#define BNXT_MAX_MTU	9000
+#define BNXT_MAX_MTU	9600
 
 #define BNXT_RSS_HASH_TYPE_TCPV4	0
 #define BNXT_RSS_HASH_TYPE_UDPV4	1