  We compute the ZZ annulus one-point function of the cosmological constant
operator in non-critical string theory, regulating divergences from the
boundaries of moduli space using string field theory. We identify a subtle
issue in a previous analysis of these divergences, which was done in the
context of the $c=1$ string theory, and where it had led to a mismatch with the
prediction from the dual matrix quantum mechanics. After fixing this issue, we
find a precise match to the expected answer in both the $c<1$ and $c=1$ cases.
We also compute the disk two-point function, which is a quantity of the same
order, and show that it too matches with the general prediction.
