An organization owner must allow forks of private and internal repositories on the organization level before you can allow or disallow forks for a specific repository. For more information, see "Managing the forking policy for your organization."
Note: Internal repositories are available for organizations that are part of an enterprise account. For more information, see "About repository visibility."
- No GitHub, navegue até a página principal do repositório.
- Under your repository name, click Settings.
- Em "Features" (Recursos), selecione Allow forking (Permitir bifurcação).