diff --git a/_examples/node-ts/server/server.gen.ts b/_examples/node-ts/server/server.gen.ts
index 5c7b4ee..15836b5 100644
--- a/_examples/node-ts/server/server.gen.ts
+++ b/_examples/node-ts/server/server.gen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
 // node-ts v1.0.0 2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0
 // --
-// Code generated by webrpc-gen@v0.11.0 with custom generator. DO NOT EDIT.
+// Code generated by webrpc-gen@v0.13.1 with ../../ generator. DO NOT EDIT.
 //
 // webrpc-gen -schema=service.ridl -target=../../ -server -out=./server/server.gen.ts
 
@@ -24,6 +24,11 @@ export enum Kind {
   ADMIN = 'ADMIN'
 }
 
+export enum KindValue {
+  USER = 0,
+  ADMIN = 1
+}
+
 export interface User {
   id: number
   USERNAME: string
diff --git a/_examples/node-ts/webapp/client.gen.ts b/_examples/node-ts/webapp/client.gen.ts
index 3f9c6ea..c6c05a0 100644
--- a/_examples/node-ts/webapp/client.gen.ts
+++ b/_examples/node-ts/webapp/client.gen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
 // node-ts v1.0.0 2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0
 // --
-// Code generated by webrpc-gen@v0.11.0 with custom generator. DO NOT EDIT.
+// Code generated by webrpc-gen@v0.13.1 with ../../ generator. DO NOT EDIT.
 //
 // webrpc-gen -schema=service.ridl -target=../../ -client -out=./webapp/client.gen.ts
 
@@ -24,6 +24,11 @@ export enum Kind {
   ADMIN = 'ADMIN'
 }
 
+export enum KindValue {
+  USER = 0,
+  ADMIN = 1
+}
+
 export interface User {
   id: number
   USERNAME: string
@@ -259,6 +264,19 @@ export class WebrpcServerPanicError extends WebrpcError {
   }
 }
 
+export class WebrpcInternalErrorError extends WebrpcError {
+  constructor(
+    name: string = 'WebrpcInternalError',
+    code: number = -7,
+    message: string = 'internal error',
+    status: number = 0,
+    cause?: string
+  ) {
+    super(name, code, message, status, cause)
+    Object.setPrototypeOf(this, WebrpcInternalErrorError.prototype)
+  }
+}
+
 
 // Schema errors
 
@@ -271,6 +289,7 @@ export enum errors {
   WebrpcBadRequest = 'WebrpcBadRequest',
   WebrpcBadResponse = 'WebrpcBadResponse',
   WebrpcServerPanic = 'WebrpcServerPanic',
+  WebrpcInternalError = 'WebrpcInternalError',
 }
 
 const webrpcErrorByCode: { [code: number]: any } = {
@@ -281,6 +300,7 @@ const webrpcErrorByCode: { [code: number]: any } = {
   [-4]: WebrpcBadRequestError,
   [-5]: WebrpcBadResponseError,
   [-6]: WebrpcServerPanicError,
+  [-7]: WebrpcInternalErrorError,
 }
 
 export type Fetch = (input: RequestInfo, init?: RequestInit) => Promise<Response>
diff --git a/types.go.tmpl b/types.go.tmpl
index a408eee..a40be8e 100644
--- a/types.go.tmpl
+++ b/types.go.tmpl
@@ -18,6 +18,13 @@ export enum {{$type.Name}} {
   {{$field.Name}} = '{{$field.Name}}'
 {{- end}}
 }
+
+export enum {{$type.Name}}Value {
+{{- range $i, $field := $type.Fields}}
+  {{- if $i}},{{end}}
+  {{$field.Name}} = {{$field.TypeExtra.Value}}
+{{- end}}
+}
 {{end -}}
 
 {{- if isStructType $type }}