OK, just to be sure, can you please copy/paste in 2 text files the content of: * /usr/share/applications/org.musicbrainz.Picard.desktop * /usr/share/metainfo/org.musicbrainz.Picard.appdata.xml + give us the output for: desktop-file-validate /usr/share/applications/org.musicbrainz.Picard.desktop Best regards, l0f4r0