diff --git a/persistence.lua b/persistence.lua
index 8940ba7..e57ebaf 100644
--- a/persistence.lua
+++ b/persistence.lua
@@ -3,10 +3,10 @@ local require = ... or require
 local function load(module_name)
 	return assert(loadfile(modlib.mod.get_resource(modlib.modname, "persistence", module_name .. ".lua")))
 end
-local _ENV = setmetatable({}, {__index = function(_ENV, module_name)
+return setmetatable({}, {__index = function(self, module_name)
 	if module_name == "lua_log_file" then
 		local module = load(module_name)()
-		_ENV[module_name] = module
+		self[module_name] = module
 		return module
 	end
 	if module_name == "sqlite3" then
@@ -17,8 +17,7 @@ local _ENV = setmetatable({}, {__index = function(_ENV, module_name)
 			end
 			return func(require"lsqlite3")
 		end
-		_ENV[module_name] = module
+		self[module_name] = module
 		return module
 	end
-end})
-return _ENV
\ No newline at end of file
+end})
\ No newline at end of file