Please increase column width for 'label'

I was trying to register a node edit form using this amazing module :-)

Then I got an error dialog that says an insert into rel_builds failed because the data for column 'label' is too big.

Turns out I've used a very long name for my node and the label it was trying to create is 36 characters long: node types can be up to 32 char long IIRC, so the edit form can be even longer than that.