click when pressing rec

Hi,
I’ve built a patch for a performance with another player, where I want to record myself playing the electric guitar, in order to give input to the other player, playing the synth.
Most of the times I press the toggle to record though, I get a click.
There are two different patched running simultaneously, one for the guitar and one for the synth (this includes the recording section). How can I avoid the click without bringing anyone’s volume to zero (we’re both playing at the particular moment)?
Thanks,
Alex