Cost of Carry Formula, is this a mistake in the book?

CFA Level I Derivatives
#1

Volume 6, Derivatives Alternative Investments, Session 17, Reading 58, Section 2.2

The CFA book has the following formula for cost of carry. For some reason, I am confused why lamda is showing up twice.

Should the formula not be this instead?

#2

Check the errata: https://www.cfainstitute.org/Eratta/2015_level_I_errata.pdf

#3

Thats it! Awesome! Thanks!

Its a little frustrating they do not update the book, it IS electronic and practically every time I open the Bookself app it “updates”. What exactly is it updating???