Wildcards in exclude-filelist for duplicity

I am trying to exclude a "bulk" folder in each home directory from the backup. For this purpose, I have a line - /data/home/*/bulk in my exclude-filelist file. However, this doesn't seem to be recognised: Warning: file specification '/data/home/*/bulk' in filelist exclude-list-test.txt doesn't start with correct prefix /data/home/kay/bulk. Ignoring. Is there a way? BTW: is the format in general compatible with rsync's exclude-from? I have a working exclude list for that, where this wildcard expression works.