From f61a27ac6bf11778df706f8070b5df68f27376cb Mon Sep 17 00:00:00 2001
From: Cloud Wu <cloudwu@gmail.com>
Date: Mon, 19 Apr 2021 18:45:56 +0800
Subject: [PATCH] fix #1388

---
 lualib-src/lua-bson.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lualib-src/lua-bson.c b/lualib-src/lua-bson.c
index f2904852..9d20242a 100644
--- a/lualib-src/lua-bson.c
+++ b/lualib-src/lua-bson.c
@@ -1086,6 +1086,7 @@ lbinary(lua_State *L) {
 	luaL_addchar(&b, 0);
 	luaL_addchar(&b, BSON_BINARY);
 	luaL_addchar(&b, 0);	// sub type
+	lua_pushvalue(L,1);
 	luaL_addvalue(&b);
 	luaL_pushresult(&b);