AnimNode in 4.13?

I have a plugin that has custom animation blueprint nodes. This works great in 4.12, but in 4.13.1, this line (and any similar) give me errors

void FAnimNode_DataStream3::Initialize(const FAnimationInitializeContext& Context)
{
    USkeleton* skeleton = Context.AnimInstance->CurrentSkeleton; 

....

Any time I call ‘Context’, it errors, with:

FAnimationInitializeContext& Context, pointer to incomplete class type is not allowed'

What has changed in the code with this version? What do i need to do to get it running?

Thanks!

Aaaand I straight away found it. Need to add an additional include…

#include "Runtime/Engine/Public/Animation/AnimInstanceProxy.h"