Hello, When ~code~ is converted to LaTeX, it becomes \verb~code~; i.e., it uses a potentially "dangerous" character, in this case `~' which is active. In most cases, it is unnoticeable, but in some environments, it breaks. The solution is to protect the command, what the attached patch does. PS- Nicolas, can you apply this one without problem? Best regards, Seb -- Sebastien Vauban