diff --git a/src/annotations/classes/aws/aws.ts b/src/annotations/classes/aws/aws.ts
index 599239b..01aa5de 100644
--- a/src/annotations/classes/aws/aws.ts
+++ b/src/annotations/classes/aws/aws.ts
@@ -1,8 +1,13 @@
 import { CLASS_AWSMEMORYSIZEKEY, CLASS_AWSTIMEOUTKEY, CLASS_AWSRUNTIMEKEY } from '../../constants'
 import { defineMetadata } from '../../metadata'
 
+export enum AwsRuntimeType {
+  NodeJs6 = 'nodejs6.10',
+  NodeJs8 = 'nodejs8.10'
+}
+
 export const aws = (config: {
-    type?: 'nodejs6.10',
+    type?: string | AwsRuntimeType,
     memorySize?: number,
     timeout?: number
 }) => (target: Function) => {
@@ -15,4 +20,4 @@ export const aws = (config: {
     if (typeof config.timeout === 'number') {
         defineMetadata(CLASS_AWSTIMEOUTKEY, config.timeout, target);
     }
-}
\ No newline at end of file
+}