diff --git a/sys/netinet/sctp_structs.h b/sys/netinet/sctp_structs.h
index bc18f0e8315..508e0e1d1c0 100644
--- a/sys/netinet/sctp_structs.h
+++ b/sys/netinet/sctp_structs.h
@@ -1205,7 +1205,7 @@ struct sctp_association {
 	/* JRS 5/21/07 - CMT PF variable */
 	uint8_t sctp_cmt_pf;
 	uint8_t use_precise_time;
-	uint32_t sctp_features;
+	uint64_t sctp_features;
 	uint16_t port;		/* remote UDP encapsulation port */
 	/*
 	 * The mapping array is used to track out of order sequences above
diff --git a/sys/netinet/sctp_sysctl.c b/sys/netinet/sctp_sysctl.c
index 53e9b0409dc..9430bd7cfa9 100644
--- a/sys/netinet/sctp_sysctl.c
+++ b/sys/netinet/sctp_sysctl.c
@@ -402,7 +402,7 @@ sctp_assoclist(SYSCTL_HANDLER_ARGS)
 		xinpcb.last = 0;
 		xinpcb.local_port = ntohs(inp->sctp_lport);
 		xinpcb.flags = inp->sctp_flags;
-		xinpcb.features = inp->sctp_features;
+		xinpcb.features = (uint32_t) inp->sctp_features;
 		xinpcb.total_sends = inp->total_sends;
 		xinpcb.total_recvs = inp->total_recvs;
 		xinpcb.total_nospaces = inp->total_nospaces;