How to read the "Name" field from document library in workflow?

Hi,

The task I'm trying to accomplish looks pertty simple: I need to read a value of the item's "Name" field inside the workflow. I try to do it using LookupSPListItem and GetDynamicValueProperties activities. I can get value of the "Title" field, also I created custom field and can read it too.

But the "Name" field always comes empty.

I guess I need to use some tricky syntax or this field has some different "internal name"?

The workflow is designed in VS 2013.