Mistake in the Practicals Kitaab

Please note error on page 50 of the Practicals Kitaab.
Salaah for females: Both hands should be kept on the upper part of the thighs with the fingers kept together. — Incorrect
 
The correct method is; “Place the hands on the thighs with the fingers together and the fingertips at the edge of the knees.” (Raddul Muhtaar Vol. 1 Page 504)”