Problem with ending a quest

[Thegood]

I'm trying to get a quest (CampingQuest) to end after it picks up an object (EndQuest1), but whenever I pick up said object, it doesn't end the quest.

void OnStart()
{
SetEntityPlayerInteractCallback("EndQuest1", "EndQuest", false);
}

void OnEnter()
{
}

void OnLeave()
{
}

void EndQuest(string &in asEntity)
{
CompleteQuest("CampingQuest", "CampingQuest");
}

Anyone have any idea what the problem is?