diff --git a/openbsc/tests/channel/Makefile.am b/openbsc/tests/channel/Makefile.am
index 7729659..8593b5a 100644
--- a/openbsc/tests/channel/Makefile.am
+++ b/openbsc/tests/channel/Makefile.am
@@ -9,6 +9,7 @@
 	$(top_srcdir)/src/gsm_subscriber.c \
 	$(top_srcdir)/src/debug.c \
 	$(top_srcdir)/src/gsm_data.c \
+	$(top_srcdir)/src/abis_nm.c \
 	$(top_srcdir)/src/bts_ipaccess_nanobts.c \
 	$(top_srcdir)/src/bts_siemens_bs11.c
 channel_test_LDADD = -ldl -ldbi $(LIBOSMOCORE_LIBS)