# Fix for querying DOIs with non-ASCII characters

**URL:** <https://community.crossref.org/t/fix-for-querying-dois-with-non-ascii-characters/3040>\
**Category:** Metadata Retrieval\
**Tags:** metadata-retrieval, xml\_api\
**Created:** [18 October 2022 21:42 UTC](https://community.crossref.org/t/fix-for-querying-dois-with-non-ascii-characters/3040 "2022-10-18T21:42:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ppolischuk](https://avatars.discourse-cdn.com/v4/letter/p/9dc877/32.png) [@ppolischuk](https://community.crossref.org/u/ppolischuk)\
**Post date:** [18 October 2022 21:42 UTC](https://community.crossref.org/t/fix-for-querying-dois-with-non-ascii-characters/3040/1 "2022-10-18T21:42:44Z")

</div>

[Today we released](https://gitlab.com/crossref/content_system/-/tags/v0.139.0) a fix for a bug that prevented users from querying for DOIs with diacritic marks.

[https://crossref.atlassian.net/browse/CR-776](https://crossref.atlassian.net/browse/CR-776)

This bug impacted 232 registered DOIs.

Now, DOIs with diacritics can be queried via the XML API, in both encoded and unencoded forms.