diff --git a/lib/zclient.h b/lib/zclient.h
index b0b7644..6a5e626 100644
--- a/lib/zclient.h
+++ b/lib/zclient.h
@@ -133,6 +133,7 @@
 extern void zclient_free (struct zclient *);
 
 extern int zclient_socket(void);
+extern int zclient_socket_un (const char *path);
 extern int  zclient_socket_connect (struct zclient *);
 extern void zclient_serv_path_set  (char *path);