comments of functions are empty

[mindforger]

using pygccxml 2.2.1

parsing a .hpp file from a class with this function

/**
 * test call
 * @param somepara - a parameter
 * @return a return value
 */
uint32_t call_something(uint32_t some_para); // test

but when i get to the call by
class_declaration.member_functions().declarations[index_of_function].comment.text
i always get an empty string ... what am i doing wrong here? looking at the version history this should be working since 2.1.0