diff --git a/openbsc/include/Makefile.am b/openbsc/include/Makefile.am
index a95129f..56b2a33 100644
--- a/openbsc/include/Makefile.am
+++ b/openbsc/include/Makefile.am
@@ -1,3 +1,3 @@
-SUBDIRS = openbsc vty
+SUBDIRS = openbsc vty sccp
 
 noinst_HEADERS = mISDNif.h compat_af_isdn.h