--- include/dnet/Makefile.in
+++ include/dnet/Makefile.in
@@ -106,7 +106,7 @@
 dnetincludedir = $(includedir)/dnet
 
 dnetinclude_HEADERS = addr.h arp.h blob.h eth.h fw.h icmp.h intf.h ip.h \
-	ip6.h os.h rand.h route.h tcp.h tun.h udp.h
+	ip6.h os.h rand.h route.h tcp.h tun.h sctp.h udp.h
 
 subdir = include/dnet
 mkinstalldirs = $(SHELL) $(top_srcdir)/config/mkinstalldirs