diff --git a/include/osmocom/Makefile.am b/include/osmocom/Makefile.am
index 246cb34..846fcc3 100644
--- a/include/osmocom/Makefile.am
+++ b/include/osmocom/Makefile.am
@@ -1,2 +1,2 @@
-SUBDIRS = hnbap ranap rua iuh
+SUBDIRS = hnbap ranap rua sabp iuh