Ha Ha. I started laughing and my GF wasn't so pleased when I told her.
I didn't realize that was part of it.
Hmm...My Greek and Hebrew are a little weak, but the Vulgate renders it thus:
Exodus 20:17 non concupisces domum proximi tui nec desiderabis uxorem eius non servum non ancillam non bovem non asinum nec omnia quae illius sunt
Deuteronomy 5:21 non concupisces uxorem proximi tui non domum non agrum non servum non ancillam non bovem non asinum et universa quae illius sunt
illius can be masculine, feminine, or neuter. Now yes, you could argue that it must be masculine, in view of the use of uxor (wife)..