diff --git a/cmd/gateway/s3/gateway-s3.go b/cmd/gateway/s3/gateway-s3.go
index 77f0f4e4b..8e2051fb5 100644
--- a/cmd/gateway/s3/gateway-s3.go
+++ b/cmd/gateway/s3/gateway-s3.go
@@ -601,7 +601,7 @@ func (l *s3Objects) CompleteMultipartUpload(ctx context.Context, bucket string,
 		return oi, minio.ErrorRespToObjectError(err, bucket, object)
 	}
 
-	return minio.ObjectInfo{Bucket: bucket, Name: object, ETag: etag}, nil
+	return minio.ObjectInfo{Bucket: bucket, Name: object, ETag: strings.Trim(etag, "\"")}, nil
 }
 
 // SetBucketPolicy sets policy on bucket