Index: src/JsEngine.cpp
===================================================================
--- a/src/JsEngine.cpp
+++ b/src/JsEngine.cpp
@@ -100,17 +100,17 @@ JsEngine::TimerTask JsEngine::CreateTime
   TimerTask retValue = { shared_from_this(), timerTaskInfoIterator };
   return retValue;
 }
 
 void JsEngine::CallTimerTask(TimerTaskInfos::const_iterator timerTaskInfoIterator)
 {
   const JsContext context(shared_from_this());
   JsValue callback(shared_from_this(), v8::Local<v8::Value>::New(GetIsolate(), *timerTaskInfoIterator->arguments[0]));
-  JsValueList callbackArgs;
+  JsConstValueList callbackArgs;
   for (int i = 2; i < timerTaskInfoIterator->arguments.size(); i++)
     callbackArgs.emplace_back(new JsValue(shared_from_this(),
     v8::Local<v8::Value>::New(GetIsolate(), *timerTaskInfoIterator->arguments[i])));
   callback.Call(callbackArgs);
   timerTaskInfos.erase(timerTaskInfoIterator);
 }
 
 AdblockPlus::JsEngine::JsEngine(const ScopedV8IsolatePtr& isolate)