Filterable recyclerview with checkboxes

I'm trying to add a checkbox (i'm doing it with imageview) to my filterable recyclerview. Checking works fine: Checking without using searchview

but when i search for something, only first item of my list is checked: After searching and deleting text in searchview

I'll post my code below:

Shop Selected Interface

public interface NearestShopActivityAdapterListener {
    void onShopSelected(FShop shop, View view);
}

My View Holder

public class MyHolder extends RecyclerView.ViewHolder{
    public TextView name, address;
    public ImageView logo;

    public MyHolder(View itemView) {
        super(itemView);
        name = (TextView) itemView.findViewById(R.id.activityNearestShopListItemUhop);
        address = (TextView) itemView.findViewById(R.id.activityNearestShopListItemAddress);
        logo = (ImageView) itemView.findViewById(R.id.activityNearestShopListItemImage);

        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                listener.onShopSelected(filteredShopList.get(getAdapterPosition()),view);
            }
        });
    }

onShopSelected function

 @Override
public void onShopSelected(FShop shop, View view) {
    if(checkList.contains(shop.getShopId())){
        mImgViewCheckBox = (ImageView) view.findViewById(R.id.checkBoxNearestShop);
        mImgViewCheckBox.setImageResource(R.drawable.checkbox_selector_not_checked);
        checkList.remove(shop.getShopId());
    }else {
        mImgViewCheckBox = (ImageView) view.findViewById(R.id.checkBoxNearestShop);
        mImgViewCheckBox.setImageResource(R.drawable.ic_checked);
        checkList.add(shop.getShopId());
    }
}

Where I am wrong? I would try to associate the ImageView mImgViewCheckBox with the Shop id and not with its position in the recyclerview, but I have no idea on how to do it. Thnak you in advance.