# Cannot add watched words for automatic tagging

**URL:** https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601
**Category:** Bug
**Tags:** watched-words, tags
**Created:** [March 4, 2026, 8:37am UTC](https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601 "2026-03-04T08:37:05Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![pangbo](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pangbo/32/538562_2.png) [@pangbo](https://meta.discourse.org/u/pangbo)
#### Post date: [March 4, 2026, 8:37am UTC](https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601/1 "2026-03-04T08:37:05Z")

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I wanted to add a keyword for automatic tagging, so I went to `/admin/customize/watched_words/action/tag` to add a new keyword and tag, but an error popped up.

 ![image](https://global.discourse-cdn.com/meta/original/4X/a/3/f/a3fdd79f3af715c3f68c1a5cb411185e3fa67ac7.png)  
 ![image](https://global.discourse-cdn.com/meta/original/4X/6/b/2/6b2d2c784b7287962b7788fb1e4d4629f3cda43e.png)

I checked the browser requests, and it looks like there is a problem with frontend serialization.

 ![image](https://global.discourse-cdn.com/meta/original/4X/1/1/f/11f282897aac09b0be7b27b59efc7bdc4fe7d105.png)

I’m using the latest version of Discourse (Discourse v2026.3.0-latest — [Commits · discourse/discourse · GitHub](https://github.com/discourse/discourse/commits/9738c429c8)). I enabled [safe mode](https://meta.discourse.org/t/53504?silent=true), and the issue still persists.

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<div class="post-metadata">

### Author: ![nat](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nat/32/235063_2.png) [@nat](https://meta.discourse.org/u/nat)
#### Post date: [March 5, 2026, 5:56am UTC](https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601/4 "2026-03-05T05:56:32Z")

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Thanks for your report. We’re aware of this and a bug fix will be ready soon.

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<div class="post-metadata">

### Author: ![nat](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nat/32/235063_2.png) [@nat](https://meta.discourse.org/u/nat)
#### Post date: [March 25, 2026, 4:18pm UTC](https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601/7 "2026-03-25T16:18:28Z")

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Hey there, just an update that the fix went out a while back. So do update when you are able!

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<div class="post-metadata">

### Author: ![nat](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nat/32/235063_2.png) [@nat](https://meta.discourse.org/u/nat)
#### Post date: [March 28, 2026, 12:00am UTC](https://meta.discourse.org/t/cannot-add-watched-words-for-automatic-tagging/397601/8 "2026-03-28T00:00:35Z")

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