diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
index d834896..e6a2dc1 100644
--- a/src/libmsc/Makefile.am
+++ b/src/libmsc/Makefile.am
@@ -64,6 +64,7 @@
 	ran_peer.c \
 	rrlp.c \
 	rtp_stream.c \
+	sdp_msg.c \
 	silent_call.c \
 	sms_queue.c \
 	transaction.c \