diff --git a/src/gui/luainstance.cpp b/src/gui/luainstance.cpp
index 71fa8f550..73ad1b0e4 100644
--- a/src/gui/luainstance.cpp
+++ b/src/gui/luainstance.cpp
@@ -601,7 +601,7 @@ int CLuaInstance::GetInput(lua_State *L)
 	/* TODO: I'm not sure if this works... */
 	if (msg != CRCInput::RC_timeout && msg > CRCInput::RC_MaxRC)
 	{
-		DBG("CLuaInstance::%s: msg 0x%08lx data 0x%08lx\n", __func__, msg, data);
+		DBG("CLuaInstance::%s: msg 0x%08"PRIx32" data 0x%08"PRIx32"\n", __func__, msg, data);
 		CNeutrinoApp::getInstance()->handleMsg(msg, data);
 	}
 	/* signed int is debatable, but the "big" messages can't yet be handled