GENERATOR_TYPE_UUID missing in EntityGenerator.php

Hey guys!

In my model I used UUID as the generator strategy for my id:
@GeneratedValue(strategy="UUID")
It works for creating my UUID but when I add some changes to my model and run
orm:generate-entities --generate-annotations="true" models/
it throws the following exception:
"[InvalidArgumentException]
Invalid provided IdGeneratorType: 6 "

Looking at the EntityGenerator.php I saw that the UUID type is not (yet?) in there. When I add it to the function getIdGeneratorTypeString() everything works fine...
I'm new to Doctrine so I'm not sure if this is actually a bug, but it seems weird to me