diff --git a/sys/modules/nfsserver/Makefile b/sys/modules/nfsserver/Makefile
index 3ff2b19d9ce4..5532060878e2 100644
--- a/sys/modules/nfsserver/Makefile
+++ b/sys/modules/nfsserver/Makefile
@@ -6,6 +6,7 @@ SRCS=	vnode_if.h \
 	nfs_fha.c nfs_serv.c nfs_srvkrpc.c nfs_srvsock.c nfs_srvcache.c \
 	nfs_srvsubs.c nfs_syscalls.c nfs_common.c \
 	opt_mac.h \
+	opt_kgssapi.h \
 	opt_nfs.h
 SRCS+=	opt_inet6.h