diff --git a/include/Makefile.am b/include/Makefile.am
new file mode 100644
index 0000000..4596b6e
--- /dev/null
+++ b/include/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = openbsc
+
+noinst_HEADERS = mISDNif.h compat_af_isdn.h