Errors in books (Khalifman Series)

I will be posting errors, mistakes or omissions in chess books and cd/dvd material.
My first one on this subject is to be found in Khalifman's work Opening for White according to Kramnik Vol. 2. This serie of 5 volumes is indeed very well done and researched, although one may suspect that a lot of the work comes from the brain of Khalifman's team, particularly IM Semkov -who, BTH, is a first class theoretician-
It is impossible to make the perfect book on openings(or the "perfect" anything to be fair)therefore, the mistake pointed out here is just for sake of correcting in order to avoid coming in for a shock.
Lets go to the board now...





This appears as a subvariation in page 43 of the aforementioned book. But instead of 17...h6?, Black has an immediate draw as follows:




As the entrance of the Black Knight at g4 obliges White to accept the perpetual.
This is no big deal, but if you want to play for a win, an improvement must be find at move 12...I haven't find one strong enough yet. If you do, please let me know sending a comment here!!!!