diff --git a/sys/conf/options b/sys/conf/options
index b987105a2edd..0a46bb3fc13f 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -419,6 +419,7 @@ SCTP_NAGLE_LOGGING      opt_sctp.h
 SCTP_WAKE_LOGGING       opt_sctp.h
 SCTP_RECV_RWND_LOGGING  opt_sctp.h
 SCTP_SACK_RWND_LOGGING  opt_sctp.h
+SCTP_FLIGHT_LOGGING     opt_sctp.h
 SCTP_MBUF_LOGGING       opt_sctp.h
 
 # Netgraph(4). Use option NETGRAPH to enable the base netgraph code.