LaTeX Font Warning/ FontAwesome

When compiling with FontAwesome support (XeLaTeX), I get a font-substitution message:

LaTeX Font Warning: Font shape `EU1/FontAwesome(0)/m/it' undefined
(Font) using `EU1/FontAwesome(0)/m/n' instead on input line 87.

This seems to come from the footer (casual-style), which is italic while FA does not sport italic letters. This may be fixed similar to the \footersymbol but using \normalfont. If I change the symbol definition in moderncviconsawesome.sty to

\renewcommand*{\mobilephonesymbol} {{\normalfont\small\faMobilePhone}~}
\renewcommand*{\fixedphonesymbol} {{\normalfont\faPhone~}}
\renewcommand*{\faxphonesymbol} {{\normalfont\faPrint~}} % alternative: \faFileAlt
\renewcommand*{\emailsymbol} {{\normalfont\faEnvelope~}} % alternative: \faInbox
\renewcommand*{\homepagesymbol} {{\normalfont\faGlobe~}} % alternative: \faHome
\renewcommand*{\linkedinsocialsymbol}{{\normalfont\faLinkedinSign~}} % alternative: \faLinkedin
\renewcommand*{\twittersocialsymbol} {{\normalfont\faTwitter~}}
\renewcommand*{\githubsocialsymbol} {{\normalfont\faGithub~}}

the warning vanishes.