From 1320fcbf0a67d3afa2210b16d5093c915cc33960 Mon Sep 17 00:00:00 2001
From: Alexander Shadchin <alexandr.shadchin@gmail.com>
Date: Thu, 1 Feb 2024 19:50:30 +0300
Subject: [PATCH] Fix #1787 (#1791)

---
 datamodel_code_generator/parser/jsonschema.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/datamodel_code_generator/parser/jsonschema.py b/datamodel_code_generator/parser/jsonschema.py
index 6a20fd01..16b64a40 100644
--- a/datamodel_code_generator/parser/jsonschema.py
+++ b/datamodel_code_generator/parser/jsonschema.py
@@ -270,6 +270,8 @@ class Config:
         def __init__(self, **data: Any) -> None:
             super().__init__(**data)
             self.extras = {k: v for k, v in data.items() if k not in EXCLUDE_FIELD_KEYS}
+            if 'const' in data.get(self.__extra_key__, {}):
+                self.extras['const'] = data[self.__extra_key__]['const']
 
     @cached_property
     def is_object(self) -> bool: