nginx rewrite as special character in the parameter name

Say I have a origin url /example-url/endpoint?lang-code=something needs to be rewritten as /example-url/anther_endpoint?lang_code=something.

and the rule like rewrite ^/example-url/endpoint /example-url/anther_endpoint?lang_code=$arg_lang-code permanent won't work, because hyper(-) is a special character,

So can this be archived by nginx?