Is there anything special that needs to be done with ampersands in URLs?

I'm working on a super simple app that basically sends data to a API and displays the result. However Fusebox is alerting me of a code error at Line X, Column Y. At that location in my code, it's my datasource URL. I think it doesn't like the ampersand in the address. Example: http://www.site.com/foo/bar/xml?param1=[var:variable]&param2=x