LEAKING REAR WNDOW WASHER HOSE

I've had small amounts of water in the boot area. It's been coming in the grills on the inner rear quarter panel covers. Never been wet before. I've now discovered water marks on the passenger side headlining and A pillar cover. After a bit of investigation I have found that the hose that goes to the rear window washer is leaking and depending where the car is parked or driven depends on where the water goes. It's booked into VX on Friday so fingers crossed it's an easy fix