diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index 4d18692..f225821 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -11,7 +11,7 @@
 		gsm_subscriber_base.c subchan_demux.c bsc_rll.c transaction.c \
 		trau_frame.c trau_mux.c paging.c e1_config.c e1_input.c tlv_parser.c \
 		input/misdn.c input/ipaccess.c signal.c gsm_utils.c talloc.c \
-		talloc_ctx.c
+		talloc_ctx.c system_information.c bitvec.c rest_octets.c
 
 libmsc_a_SOURCES = gsm_subscriber.c db.c telnet_interface.c \
 		mncc.c rtp_proxy.c gsm_04_08.c gsm_04_11.c transaction.c \