no "taskbar" icon

[Nublublu]

I'm using xubuntu x64 16.04 installed from repo

so on my "taskbar" weather that is just the plain xfce-panel, dockbarx, or docky when enpass is open it just shows a generic window icon, instead of the Enpass Icon,
when I say "taskbar" I am refering to the area where I click to change the focused program, like firefox, thunar, thunderbird, etc..