[Plugin: SyntaxHighlighter Evolved] Weird encoding

I have some code here
http://askautomation.com/blog/generate-a-google-pie-chart/

with this url:
google-pie-url: build-markup {http://chart.apis.google.com/chart?cht=p3&chs=650×300&chd=t:<%percentages-list%>&chl=<%percentages-labels%>&chtt=<%title%>}

But if you look at the page it shows
&;chs=

instead of
&chs=

http://ww.wp.xz.cn/extend/plugins/syntaxhighlighter/