activer l'autocomplétion d'apt-get pour les utilisateurs non privilégiés ?

J'ai activé apt-get dans SUDO sans mot de passe, et l'autocomplétion de bash doit également être activée, mais comment ?

If i try to source that file:
%> . /etc/bash_completion.d/apt
No command 'have' found, did you mean:
 Command 'vave' from package 'lipsia' (universe)
 Command 'havp' from package 'havp' (universe)
 Command 'haxe' from package 'haxe' (universe)
 Command 'dave' from package 'libhttp-dav-perl' (universe)
 Command 'save' from package 'atfs' (universe)
have: command not found
No command 'have' found, did you mean:
 Command 'vave' from package 'lipsia' (universe)
 Command 'havp' from package 'havp' (universe)
 Command 'haxe' from package 'haxe' (universe)
 Command 'dave' from package 'libhttp-dav-perl' (universe)
 Command 'save' from package 'atfs' (universe)
have: command not found