Dear Maxime, This is an artifact after I run guix style. I missed it this time. Thanks for spotting this! All the best! Mădălin Ionel Patrașcu System Administrator The Berlin Institute for Medical Systems Biology (BIMSB) Max Delbrück Center (MDC) Robert-Rössle-Straße 10 House 87, room 1.10 13125 Berlin, Germany ________________________________ From: Maxime Devos Sent: Monday, March 21, 2022 21:17 To: Patrascu, Madalin Ionel; 54511@debbugs.gnu.org Subject: [ext] Re: [bug#54511] [PATCH] gnu: Add r-cytobackbone. Mădălin Ionel Patrașcu schreef op ma 21-03-2022 om 20:19 [+0100]: > + (properties `((upstream-name #{.}# "CytoBackBone"))) This needs to be (upstream-name . "CytoBackBone") -- #{.}# is the symbol containing a dot, so (upstream-name #{.}# "CytoBackBone") is a three-element list and not a pair. Greetings, Maxime.