Attorneys for a former Goldman Sachs computer programmer are appealing the Delaware Court of Chancery’s ruling last week that blocked their client’s bid to recover legal fees for defending himself against charges of stealing investment bank source code.

Sergey Aleynikov served nearly a year in federal prison before an appeals court reversed his conviction and has been prosecuted in New York state court as well. He’s been trying for four years to force Goldman Sachs to pay his legal fees—first in a New Jersey federal court and now Chancery Court—on the ground that as a Goldman vice president he was entitled to fee advancement.