diff --git a/modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml b/modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml
index b77ff51d4bae..e0f1475ea83d 100644
--- a/modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml
+++ b/modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml
@@ -1640,6 +1640,20 @@ components:
       required:
         - id
         - activity
+    DiscriminatorAllOfSuper:
+      type: object
+      required:
+        - elementType
+      discriminator:
+        propertyName: elementType
+      properties:
+        elementType:
+          type: string
+    DiscriminatorAllOfSub:
+      allOf:
+        - $ref: '#/components/schemas/DiscriminatorAllOfSuper'
+        - type: object
+          properties: {}
     Pet:
       type: object
       required:
diff --git a/samples/openapi3/client/petstore/python/tests/test_model.py b/samples/openapi3/client/petstore/python/tests/test_model.py
index e67ae8fb6538..7e284d7b19b6 100644
--- a/samples/openapi3/client/petstore/python/tests/test_model.py
+++ b/samples/openapi3/client/petstore/python/tests/test_model.py
@@ -342,6 +342,11 @@ def test_inheritance(self):
         self.assertEqual(dog2.breed, 'bulldog')
         self.assertEqual(dog2.class_name, "dog")
         self.assertEqual(dog2.color, 'white')
+    
+    def test_inheritance_discriminators(self):
+        petstore_api.DiscriminatorAllOfSuper.from_dict({"className": "dog", "color": "white", "breed": "bulldog"})
+
+
 
     def test_list(self):
         # should throw exception as var_123_list should be string