Reference a unregistered library that is in GitHub in my private lib

I would like to reference as dependency a PIO unregistered library that is in GitHub in my private lib.

I tried but I always end with the message

Warning! Library {u'url': u'https://github.com/KonkerLabs/KonkerESP.git', u'platforms': [u'espressif8266'], u'name': u'KonkerESP', u'authors': u'Erico Netto'} has not been found in
PlatformIO Registry.

Library is added to registry. Just use its name. PlatformIO Registry