Completely hide UCLASS from the content browser

I’m developing a plugin for UE4 and there’s a file in which I declare a UClass from which I derive children classes. The children are the actual important content, the parent is just a template that doesn’t do anything on its own. I’ve looked into this and found the UCLASS(Abstract) specifier which does prevent adding the class to anything in the editor, but I was wondering if there was a way to completely hide it. As in, I don’t want it to appear in the content browser at all. Is that possible?

UCLASS ( Abstract, HideDropdown )

Thanks for your reply, unfortunately that doesn’t work. The class still shows up in the content browser.