diff --git a/src/module/http/response.cpp b/src/module/http/response.cpp
index 502b772..ef7b146 100644
--- a/src/module/http/response.cpp
+++ b/src/module/http/response.cpp
@@ -32,7 +32,7 @@ void module::response::set(const std::string& name, const std::string& value)
     m_sets[name] = value;
 }
 
-void module::response::sets(sol::table& lua_table)
+void module::response::sets(const sol::table& lua_table)
 {
     auto parse_lua_table = [](const sol::table& table, const auto& self) -> std::map<std::string, std::string> {
         std::map<std::string, std::string> result;
diff --git a/src/module/http/response.h b/src/module/http/response.h
index 5d7193e..1a9d903 100644
--- a/src/module/http/response.h
+++ b/src/module/http/response.h
@@ -20,7 +20,7 @@ namespace module
         void header(const std::string& name, const std::string& value);
 
         void set(const std::string& name,const std::string& value);
-        void sets(sol::table& lua_table);
+        void sets(const sol::table& lua_table);
         static void regist(sol::state* lua);
     private:
         network::http::response* m_response = nullptr;