Hello Nicolas, that worked perfectly. I had a strange character in that file and now it works good. Thanks, Michael Am 2017-05-08 11:52, schrieb Nicolas Goaziou: > michael.ziems@xiron.de writes: > >> When i byte-compile the file i get the following error: >> >> Compiling file >> c:/Users/sane/AppData/Roaming/.emacs.d/elpa/org-20170502/org-clock.el at >> Mon May 8 11:27:30 2017 >> org-clock.el:1949:1:Error: Invalid read syntax: "?" > > It looks odd. Could you double-check the modification you made? It > should be made of the following characters: > > ? \ ยท > > without space between them. > > Regards,