# Problem in latest.rss / Not a Valid Feed, it says!
**URL:** https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466
**Category:** Support
**Created:** [January 10, 2017, 8:27am UTC](https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466 "2017-01-10T08:27:59Z")
**Posts on this page:** 1
**Showing post:** 24
### Author:  [@cpradio](https://meta.discourse.org/u/cpradio)
#### Post date: [January 14, 2017, 5:45pm UTC](https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466/24 "2017-01-14T17:45:49Z")
@codinghorror, I can now confirm this is happening due to the `default locale` being changed in Admin \> Settings. When I select Persian, it adds the `fa_IR` to the RSS feed output. Switching it back to English, puts it back to `en`.
Based on [List of ISO 639 language codes - Wikipedia](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes), it seems the appropriate code for Persian is simply `fa`, I’m not sure why `_IR` is being appended to it.
When I take the RSS output and plug it directly into the validator, changing `fa_IR` to `fa`, it marks it as Valid RSS.
With all that said, it seems this is a valid bug. I also confirmed using other languages (I choose at random, and have no idea what they were), were all using 2 character codes which made them valid as well.
Other locales that exhibit this same issue
- bs\_BA (should be bs?)
- fa\_IR (should be fa, per is also valid - ISO 639-2/B)
- nb\_NO (should be nb?)
- pl\_PL (should be pl?)
- pt\_BR (should be pt?)
- tr\_TR (should be tr?)
- zh\_CN (should be zh?)
- zn\_TW (should be zh?)
I wonder if the quick fix for this is to only take the first two characters for the `` element in the RSS feed.
---
_[View the full topic](https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466)._