diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
index bb2a4a1..3c06514 100644
--- a/src/libmsc/Makefile.am
+++ b/src/libmsc/Makefile.am
@@ -23,6 +23,7 @@
 	$(NULL)
 
 libmsc_a_SOURCES = \
+	a_iface.c \
 	auth.c \
 	db.c \
 	gsm_04_08.c \
@@ -32,6 +33,7 @@
 	mncc.c \
 	mncc_builtin.c \
 	mncc_sock.c \
+	msc_ifaces.c \
 	rrlp.c \
 	silent_call.c \
 	sms_queue.c \