@Prinz-der-Sterne Ha ha, perhaps. I suspect this might be a question in the FAQ, but might as well explain why it isn't a bad thing.
It is already in the FAQ of catan: https://www.catan.com/faqs/92?page=1
(See various longest road entries. It answers your question, especially:
Longest Road - May I add individual road pieces to an interrupted (Longest) Road?
Yes. You can add individual road pieces as long as you have a road, settlement or city to connect them to.