Commenting out the line OnlyShowIn=GNOME;Unity; in /usr/share/applications/gnome-terminal.desktop solved this issue for me.
/usr/share/applications/gnome-terminal.desktop: [Desktop Entry] Name=Terminal ... #OnlyShowIn=GNOME;Unity; ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1351139 Title: duplicated terminal icons To manage notifications about this bug go to: https://bugs.launchpad.net/docky/+bug/1351139/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs