Unknown Similarity type

I did the following typo when defining my similarity type:
"settings": {
"similarity": {
"bm25_title": {
"type": "KLDivergece"
"bm25_body": {
"type": "KLDivergence"

the type for bm25_title should be KLDivergence. I've closed my index and tried to change the settings but I got:

"type":"illegal_argument_exception","reason":"Unknown Similarity type [KLDivergece] for [bm25_title]"}

I know the error is due to my typo, but how can I fix it if I can't update the settings?


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