A hearing aid configured to be arranged at least partly on a user's head or at least partly implanted in a user's head, the hearing aid comprising • at least one input transducer for picking up an input sound signal from the environment and providing at least one electric input signal representing said input sound signal; • a signal processor providing a processed signal based on one or more of said at least one electric input signal; • an output unit for converting said processed signal or a signal originating therefrom to stimuli perceivable by said user as sound; and • a keyword spotting system comprising ∘ a keyword detector configured to detect a limited number of predefined keywords or phrases or sounds in said at least one electric input signal or in a signal derived therefrom, and to provide a keyword indicator of whether or not, or with what probability, said keywords or phrases or sounds are detected, o an own voice detector for providing an own voice indicator estimating whether or not, or with what probability, a given input sound signal originates from the voice of the user of the hearing aid, and ∘ a controller configured to provide an own-voice-keyword indicator of whether or not or with what probability a given one of said keywords or phrases or sounds is currently detected and spoken by said user, said own-voice-keyword indicator being dependent on said keyword indicator and said own voice indicator, • CHARACTERIZED IN THAT said keyword spotting system is configured to provide that said keyword is only accepted as a valid keyword, if ∘ a) the own-voice indicator indicates that the user's own voice has NOT been detected for a first predefined time period preceding the keyword, AND ∘ b) that the own-voice indicator indicates that the user's own voice is detected while the keyword indicator indicates that said keyword is detected. • at least one input transducer for picking up an input sound signal from the environment and providing at least one electric input signal representing said input sound signal; • a signal processor providing a processed signal based on one or more of said at least one electric input signal; • an output unit for converting said processed signal or a signal originating therefrom to stimuli perceivable by said user as sound; and • a keyword spotting system comprising ∘ a keyword detector configured to detect a limited number of predefined keywords or phrases or sounds in said at least one electric input signal or in a signal derived therefrom, and to provide a keyword indicator of whether or not, or with what probability, said keywords or phrases or sounds are detected, o an own voice detector for providing an own voice indicator estimating whether or not, or with what probability, a given input sound signal originates from the voice of the user of the hearing aid, and ∘ a controller configured to provide an own-voice-keyword indicator of whether or not or with what probability a given one of said keywords or phrases or sounds is currently detected and spoken by said user, said own-voice-keyword indicator being dependent on said keyword indicator and said own voice indicator, ∘ a keyword detector configured to detect a limited number of predefined keywords or phrases or sounds in said at least one electric input signal or in a signal derived therefrom, and to provide a keyword indicator of whether or not, or with what probability, said keywords or phrases or sounds are detected, o an own voice detector for providing an own voice indicator estimating whether or not, or with what probability, a given input sound signal originates from the voice of the user of the hearing aid, and ∘ a controller configured to provide an own-voice-keyword indicator of whether or not or with what probability a given one of said keywords or phrases or sounds is currently detected and spoken by said user, said own-voice-keyword indicator being dependent on said keyword indicator and said own voice indicator, • CHARACTERIZED IN THAT said keyword spotting system is configured to provide that said keyword is only accepted as a valid keyword, if ∘ a) the own-voice indicator indicates that the user's own voice has NOT been detected for a first predefined time period preceding the keyword, AND ∘ b) that the own-voice indicator indicates that the user's own voice is detected while the keyword indicator indicates that said keyword is detected. ∘ a) the own-voice indicator indicates that the user's own voice has NOT been detected for a first predefined time period preceding the keyword, AND ∘ b) that the own-voice indicator indicates that the user's own voice is detected while the keyword indicator indicates that said keyword is detected.