General developer forum

i just noticed that under "Outline report" and "Complete report" my custom forum icon is not displayed but the original one.
the custom icon is - so i think - correctly placed in my theme under pix/mod/forum/

i think line 140 in /course/user.php is the cause for that:

$image = "<img src=\"../mod/$mod->modname/icon.gif\" ".

so is this just me configuring something wrong or has this line to be changed?

thx, micha