diff --git a/openbsc/src/libbsc/Makefile.am b/openbsc/src/libbsc/Makefile.am
index 8c53817..b8e77e6 100644
--- a/openbsc/src/libbsc/Makefile.am
+++ b/openbsc/src/libbsc/Makefile.am
@@ -41,6 +41,7 @@
 	bsc_api.c \
 	bsc_msc.c bsc_vty.c \
 	gsm_04_08_utils.c \
+	gsm_04_80_utils.c \
 	bsc_init.c \
 	bts_init.c \
 	bsc_rf_ctrl.c \