A sound man knocked over a heavy metal music stand onto my Prescott today

. It sustained a gouge/scratch in the neck wood about 1/2 inch long, an 1/8 inch deep and about 3/16 inch wide

. I count myself lucky it didn't do anything worse like cut in the top or something.
What is a good repair to fill this gouge so i don't feel it under my thumb or hand?
Thanks, BG