diff --git a/aws-sdk/aws-sdk.d.ts b/aws-sdk/aws-sdk.d.ts
index 3fe8f65b0f..f484c5fdac 100644
--- a/aws-sdk/aws-sdk.d.ts
+++ b/aws-sdk/aws-sdk.d.ts
@@ -382,8 +382,8 @@ declare module "aws-sdk" {
     endpoint: Endpoint;
 
     getObject(params: s3.GetObjectRequest, callback?: (err: Error, data: any) => void): any;
+    putObject(params: s3.PutObjectRequest, callback?: (err: Error, data: any) => void): any;
     copyObject(params: s3.CopyObjectRequest, callback?: (err: Error, data: any) => void): any;
-    putObject(params: s3.PutObjectRequest, callback: (err: Error, data: any) => void): void;
     deleteObject(params: s3.DeleteObjectRequest, callback: (err: Error, data: any) => void): void;
     headObject(params: s3.HeadObjectRequest, callback: (err: Error, data: any) => void): void;
     getSignedUrl(operation: string, params: any): string;
@@ -660,7 +660,7 @@ declare module "aws-sdk" {
 
     export interface DescribeStackResourcesParams {
       StackName?: string;          //  must specify either StackName or PhysicalResourceId
-      LogicalResourceId?: string; 
+      LogicalResourceId?: string;
       PhysicalResourceId?: string; //  must specify either StackName or PhysicalResourceId
     }