diff --git a/modules/openapi-generator/src/main/resources/swift5/modelOneOf.mustache b/modules/openapi-generator/src/main/resources/swift5/modelOneOf.mustache
index fae34faa975e..1c16a3955bc4 100644
--- a/modules/openapi-generator/src/main/resources/swift5/modelOneOf.mustache
+++ b/modules/openapi-generator/src/main/resources/swift5/modelOneOf.mustache
@@ -1,4 +1,4 @@
-public enum {{classname}}: {{#useVapor}}Content{{/useVapor}}{{^useVapor}}Codable{{/useVapor}} {
+public enum {{classname}}: {{#useVapor}}Content{{/useVapor}}{{^useVapor}}Codable{{#vendorExtensions.x-swift-hashable}}, Hashable{{/vendorExtensions.x-swift-hashable}}{{/useVapor}} {
     {{#oneOf}}
     case type{{.}}({{.}})
     {{/oneOf}}
diff --git a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/Models/Fruit.swift b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/Models/Fruit.swift
index d58ad1f8b319..c249774d2a2b 100644
--- a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/Models/Fruit.swift
+++ b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/Models/Fruit.swift
@@ -10,7 +10,7 @@ import Foundation
 import AnyCodable
 #endif
 
-public enum Fruit: Codable {
+public enum Fruit: Codable, Hashable {
     case typeApple(Apple)
     case typeBanana(Banana)