diff --git a/sys/conf/options b/sys/conf/options
index 2ba63b39c5e8..a9044bb8b338 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -243,6 +243,7 @@ NETGRAPH_ECHO		opt_netgraph.h
 NETGRAPH_FRAME_RELAY	opt_netgraph.h
 NETGRAPH_HOLE		opt_netgraph.h
 NETGRAPH_IFACE		opt_netgraph.h
+NETGRAPH_KSOCKET	opt_netgraph.h
 NETGRAPH_LMI		opt_netgraph.h
 NETGRAPH_PPP		opt_netgraph.h
 NETGRAPH_PPPOE		opt_netgraph.h