dar -l -I "*file*" show not only files but even directories

"charles.murdock via Dar-support" <[email protected]> Sun, 09 Mar 2025 16:10:23 +0100
Newsgroups gmane.comp.sysutils.backup.dar.support
Message-ID <[email protected]>
dar -l archive -I "*file*"
I want to list files specified with -I option, it works but it shows 
directory names too.
Is this the default behaviour? Or am i doing something wrong?
How can I exclude directories?
Thanks.