The following workaround solve the problem: https://bugs.kde.org/show_bug.cgi?id=348944#c5 modify the file: /usr/share/kde4/services/kerfuffle_clizip.desktop Change the line: MimeType=application/x-java-archive; to MimeType=application/x-java-archive;application/zip; Then run (from a terminal): kbuildsycoca4 --noincremental