diff --git a/openbsc/include/openbsc/osmo_msc_data.h b/openbsc/include/openbsc/osmo_msc_data.h
index d3f8474..4205c15 100644
--- a/openbsc/include/openbsc/osmo_msc_data.h
+++ b/openbsc/include/openbsc/osmo_msc_data.h
@@ -51,5 +51,6 @@
 };
 
 int osmo_bsc_msc_init(struct gsm_network *network);
+int msc_queue_write(struct bsc_msc_connection *conn, struct msgb *msg, int proto);
 
 #endif
diff --git a/openbsc/src/bsc/osmo_bsc_msc.c b/openbsc/src/bsc/osmo_bsc_msc.c
index 4b70353..864b5d7 100644
--- a/openbsc/src/bsc/osmo_bsc_msc.c
+++ b/openbsc/src/bsc/osmo_bsc_msc.c
@@ -36,7 +36,6 @@
 #include <unistd.h>
 
 
-static int msc_queue_write(struct bsc_msc_connection *conn, struct msgb *msg, int proto);
 static void initialize_if_needed(struct bsc_msc_connection *conn);
 static void send_id_get_response(struct osmo_msc_data *data, int fd);
 static void send_ping(struct osmo_msc_data *data);
@@ -163,7 +162,7 @@
 /*
  * Send data to the network
  */
-static int msc_queue_write(struct bsc_msc_connection *conn, struct msgb *msg, int proto)
+int msc_queue_write(struct bsc_msc_connection *conn, struct msgb *msg, int proto)
 {
 	ipaccess_prepend_header(msg, proto);
 	if (write_queue_enqueue(&conn->write_queue, msg) != 0) {