diff --git a/item_strongbox.lua b/item_strongbox.lua
index 6ae02bf..63cc710 100644
--- a/item_strongbox.lua
+++ b/item_strongbox.lua
@@ -66,6 +66,17 @@ minetest.register_node("minertrade:strongbox", {
 	end,
 })
 
+minetest.register_on_player_receive_fields(function(sender, formname, fields)
+	local sendername = sender:get_player_name()
+	--minetest.chat_send_player(sendername, "formname="..formname.." fields="..dump(fields))
+	if formname == "safe_"..sendername then -- This is your form name
+		if fields.quit then
+			modMinerTrade.doSave()
+			minetest.log('action',"[STRONGBOX] "..modMinerTrade.translate("Saving strongbox from all players in the file '%s'!"):format(modMinerTrade.urlTabela))
+		end
+	end
+end)
+
 minetest.register_craft({
 	output = 'minertrade:strongbox',
 	recipe = {