diff --git a/sys/netinet/sctputil.h b/sys/netinet/sctputil.h
index 8d663abe2ca..8a6ee6fb213 100644
--- a/sys/netinet/sctputil.h
+++ b/sys/netinet/sctputil.h
@@ -169,8 +169,6 @@ sctp_report_all_outbound(struct sctp_tcb *, int, int
 
 int sctp_expand_mapping_array(struct sctp_association *, uint32_t);
 
-/* EY nr_sack version of the above method, expands nr_mapping_array */
-int sctp_expand_nr_mapping_array(struct sctp_association *, uint32_t);
 void 
 sctp_abort_notification(struct sctp_tcb *, int, int
 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)