diff --git a/aws-sdk/aws-sdk.d.ts b/aws-sdk/aws-sdk.d.ts
index 94e13c93d2..324f36bd12 100644
--- a/aws-sdk/aws-sdk.d.ts
+++ b/aws-sdk/aws-sdk.d.ts
@@ -90,8 +90,8 @@ declare module "aws-sdk" {
 	export interface ClientConfigPartial extends Services {
 		credentials?: Credentials;
 		region?: string;
-        accessKeyId: string;
-        secretAccessKey: string;
+        	accessKeyId?: string;
+        	secretAccessKey?: string;
 		computeChecksums?: boolean;
 		convertResponseTypes?: boolean;
 		logger?: Logger;