diff --git a/openbsc/src/libbsc/Makefile.am b/openbsc/src/libbsc/Makefile.am
index 4728e23..8c53817 100644
--- a/openbsc/src/libbsc/Makefile.am
+++ b/openbsc/src/libbsc/Makefile.am
@@ -49,5 +49,6 @@
 	bsc_ctrl_lookup.c \
 	net_init.c \
 	bsc_dyn_ts.c \
+	bts_ipaccess_nanobts_omlattr.c \
 	$(NULL)