# Filename to tag not working
**URL:** https://community.mp3tag.de/t/filename-to-tag-not-working/11521
**Category:** Support
**Created:** [January 30, 2011, 12:32pm UTC](https://community.mp3tag.de/t/filename-to-tag-not-working/11521 "2011-01-30T12:32:18Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@jasonb](https://community.mp3tag.de/u/jasonb)
#### Post date: [January 30, 2011, 12:32pm UTC](https://community.mp3tag.de/t/filename-to-tag-not-working/11521/1 "2011-01-30T12:32:18Z")
I have an album of MP3s that have been mistagged - the artists names and song titles don't match the actual song. The filenames however are correct. When I try "Filename to tag" conversion, it shows "%artist% - %album% - %track% - %title%" in the format string, which appears to be correct. However, the OK button is greyed out. I really don't want to have to rip this CD again. What's going on here? Thanks.
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### Author:  [@pone](https://community.mp3tag.de/u/pone)
#### Post date: [January 30, 2011, 12:57pm UTC](https://community.mp3tag.de/t/filename-to-tag-not-working/11521/2 "2011-01-30T12:57:40Z")
It is greyed out when the formatstring doesn't represent the filename. What is you filename? For %artist% - %album% - %track% - %title% it would have to be someting like "Michael Jackson - Thriller - 05 - Beat It.mp3"
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### Author:  [@jasonb](https://community.mp3tag.de/u/jasonb)
#### Post date: [January 30, 2011, 4:29pm UTC](https://community.mp3tag.de/t/filename-to-tag-not-working/11521/3 "2011-01-30T16:29:32Z")
Yes, that was the issue, the tags in the filename weren't separated by dashes.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:22pm UTC](https://community.mp3tag.de/t/filename-to-tag-not-working/11521/4 "2026-02-09T12:22:52Z")