Would you mind testing the updated version at https://build.opensuse.org/package/show/home:alois:branches:utilities/tty-clock and see if you can still reproduce the error? > ldd tty-clock linux-vdso.so.1 (0x00007fff6a9d8000) libncurses.so.6 => /lib64/libncurses.so.6 (0x00007efea7ddd000) libtinfo.so.6 => /lib64/libtinfo.so.6 (0x00007efea7bb2000) libc.so.6 => /lib64/libc.so.6 (0x00007efea77f8000) libdl.so.2 => /lib64/libdl.so.2 (0x00007efea75f4000) /lib64/ld-linux-x86-64.so.2 (0x00007efea820c000)