"bash : alias: -p : not found" after configuring guix home

[Hubert]

Hello guix!

Yesterday I have configured guix home by launching successively the following 
command lines:

~$ guix home import ~/src/guix-config

~$ guix home reconfigure /home/hubert/src/guix-config/home-configuration.scm

~$ guix home search shell

~$ guix home list-generations
Génération 1    21 févr. 2022 21:56:47  (actuelle)
  nom de fichier : /var/guix/profiles/per-user/hubert/guix-home-1-link
  nom de fichier canonique : /gnu/store/4ns9kjknyi48l1qq1301770bn67fhfbx-home
  canaux :
    guix:
      URL du dépôt : https://git.savannah.gnu.org/git/guix.git
      branche : master
      commit : 1c7f7544249b93492db169777122729cca92d325
  fichier de configuration : 
/gnu/store/bfk4q9wqr9ncb9x5m6irzacy4qanhya3-configuration.scm

~$ guix home describe (displays exactly the same result as the previous 
command).

This morning, when I launched a terminal, a line at the top says : "bash: 
alias: -p : not found"

Is this normal or should something be done?

Thanks in advance for any advice.

Hubert