I want Hazel to find my Pipe

Sometimes the Pipe Symbol or Vertical Line is used in the names of files. I have a program that cannot use a title that uses the | symbol in it or a number of other symbols: / \ ? * < >, so I made a rule that when a file comes into a particular folder that it checks for each of those symbols. The rule works for every one of them except the |. Anybody got any ideas? Thanks!