Fixed http://bugs.vcmi.eu/view.php?id=2634

lib/mapObjects/CQuest.cpp

@@ -242,7 +242,7 @@ void CQuest::getRolloverText(MetaString &ms, bool onHover) const
 	switch(missionType)
 	{
 		case MISSION_LEVEL:
-			ms.addReplacement(boost::lexical_cast<std::string>(m13489val));
+			ms.addReplacement(m13489val);
 			break;
 		case MISSION_PRIMARY_STAT:
 			{