diff --git a/src/framework/luafunctions.cpp b/src/framework/luafunctions.cpp
index eb4b0bd19..fe347c131 100644
--- a/src/framework/luafunctions.cpp
+++ b/src/framework/luafunctions.cpp
@@ -818,6 +818,7 @@ void Application::registerLuaFunctions()
     g_lua.bindClassMemberFunction<OutputMessage>("addU32", &OutputMessage::addU32);
     g_lua.bindClassMemberFunction<OutputMessage>("addU64", &OutputMessage::addU64);
     g_lua.bindClassMemberFunction<OutputMessage>("addString", &OutputMessage::addString);
+    g_lua.bindClassMemberFunction<OutputMessage>("addRawString", &OutputMessage::addRawString);
     g_lua.bindClassMemberFunction<OutputMessage>("addPaddingBytes", &OutputMessage::addPaddingBytes);
     g_lua.bindClassMemberFunction<OutputMessage>("encryptRsa", &OutputMessage::encryptRsa);
     g_lua.bindClassMemberFunction<OutputMessage>("getMessageSize", &OutputMessage::getMessageSize);