diff --git a/libmctp-serial.h b/libmctp-serial.h
index 3e6fc5f..8a70101 100644
--- a/libmctp-serial.h
+++ b/libmctp-serial.h
@@ -12,6 +12,7 @@
 struct mctp_binding_serial;
 
 struct mctp_binding_serial *mctp_serial_init(void);
+void mctp_serial_destroy(struct mctp_binding_serial *serial);
 
 struct mctp_binding *mctp_binding_serial_core(struct mctp_binding_serial *b);