x11/mate/terminal: missing build dependency

Hey friends,
the port "x11/mate/terminal" needs the port "itstool" as a dependency in
order to build correctly.

Here are the build logs:
> checking for itstool... no
> configure: error: itstool not found
> *** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2646 '/usr/ports/pobj/mate-terminal-1.18.1/.configure_done')
> *** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:1892 '/usr/ports/packages/amd64/all/mate-terminal-1.18.1p0.tgz')
> *** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2391 '_internal-package')
> *** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2370 'package')
> *** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:1909 '/var/db/pkg/mate-terminal-1.18.1p0/+CONTENTS')
> *** Error 1 in /usr/ports/x11/mate/terminal (/usr/ports/infrastructure/mk/bsd.port.mk:2370 'install')

When i install itstool the port gets build fine.
Thanks and greetings
Leo