Li i 6708 Å spectral region of KU Peg. The observed spectrum is an average of 40 individual exposures taken in July/Aug 2009. The three sets of thin lines are synthetic spectra for three metallicities (see insert, for –1.00, –0.37 and 0.0) and for three Li abundances of log n = 0.0, 0.1, and 0.2. Our best estimate with a metallicity of –0.37 suggests an upper Li limit of log n = 0.1 ± 0.1.