Made a mistake in booking

I just booked a ticket for my mother and her friend, but accidentally put her friends title as 'Miss' when she is in fact a 'Mrs'.
I couldn't see anywhere to change this in the my booking section, the APIS doesn't ask for it.
Will this cause a problem at check-in, is it worth calling VS to get this changed?
Thanks
I couldn't see anywhere to change this in the my booking section, the APIS doesn't ask for it.
Will this cause a problem at check-in, is it worth calling VS to get this changed?
Thanks