problem with position of bar rest

[liang seng]

Hi, I have an interesting problem here. In the first bar of "example.pdf", 
the bar rest of the upper voice is too close to the notes on the lower 
voice. How do I move the rest vertically upwards? I can't use pitched rests 
as the bar rest would move to the left side of the bar.
Thank you.
Yours sincerely,
Seng

example.ly
Description: Text Data

example.pdf
Description: Adobe PDF document