# Elasticsearch mapping

**URL:** <https://discuss.elastic.co/t/elasticsearch-mapping/277303>\
**Category:** Elasticsearch\
**Created:** [June 29, 2021, 7:32am UTC](https://discuss.elastic.co/t/elasticsearch-mapping/277303 "2021-06-29T07:32:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kanchan\_thakur](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kanchan_thakur/32/90942_2.png) [@kanchan\_thakur](https://discuss.elastic.co/u/kanchan_thakur)\
**Post date:** [June 29, 2021, 7:32am UTC](https://discuss.elastic.co/t/elasticsearch-mapping/277303/1 "2021-06-29T07:32:03Z")

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Hi,  
I am using User dictionary rules in Kuromoji tokenizer in ES mapping.

> **[kuromoji\_tokenizer | Elasticsearch Plugins and Integrations \[7.4\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/plugins/7.4/analysis-kuromoji-tokenizer.html)**

When I am feeding my data to Elasticsearch cluster it mapped some of the keywords strangely  
like keyword 禰󠄀豆子.

I got that ES normalizes the "禰󠄀豆子" =\> "禰󠄀 豆子" with a space after 禰󠄀 kanji and my user dictionary rules are showing like this after mapping.  
"user\_dictionary\_rules" : [  
"禰󠄀\uDB40\uDD00豆子,禰󠄀\uDB40\uDD00豆子,ネズコ,カスタム名詞"  
]

But it should be  
"user\_dictionary\_rules" : [  
"禰󠄀豆子,禰󠄀豆子,ネズコ,カスタム名詞"  
]

How do I fix this or where can I find more information about this issue?

Thank you.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 27, 2021, 7:32am UTC](https://discuss.elastic.co/t/elasticsearch-mapping/277303/2 "2021-07-27T07:32:34Z")

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