id3v2 reports "No ID3 tag" on MP3 file but VLC shows tags on same file

On my NAS I have a lot of MP3 files ripped from audio CDs I own and tagged with EasyTAG. The tags show just fine when playing the files in VLC. But when I try to extract them on the command line with id3v2 the tool reports:

tilman@Neon:~$ id3v2 -l track01.mp3 track01.mp3: No ID3 tag

What could be the reason for this and, more importantly, how can I successfully extract the tags?