The method for configuring a home-automation apparatus (1) includes: at least one control point of a first type (3A, 4A) intended to communicate according to a first mode; and at least one actuator (5A, 6A) intended to communicate, after performing the configuration method, according to the first mode with at least one control point of the first type (3A, 4A) during usage mode, and which can communicate according to a second mode, secured by an encryption key, with a configuration device (2) during configuration mode. The configuration device implements the method which includes determining at least one actuator (5A, 6A) that can be configured, obtaining a temporary encryption key having a limited period of validity, sending a message containing the temporary encryption key to the at least one actuator, communicating according to the second mode, secured by the temporary encryption key, with the at least one actuator in configuration mode.