name : detach-thing-principal.rst **To detach a certificate/principal from a thing** The following ``detach-thing-principal`` example removes a certificate that represents a principal from the specified thing. :: aws iot detach-thing-principal \ --thing-name "MyLightBulb" \ --principal "arn:aws:iot:us-west-2:123456789012:cert/604c48437a57b7d5fc5d137c5be75011c6ee67c9a6943683a1acb4b1626bac36" This command produces no output. For more information, see `How to Manage Things with the Registry <https://docs.aws.amazon.com/iot/latest/developerguide/thing-registry.html>`__ in the *AWS IoT Developers Guide*.