} else if _, ok := listPartsInfo.UserDefined[ReservedMetadataPrefix+"compression"]; ok {
		for i, p := range listPartsInfo.Parts {
			listPartsInfo.Parts[i].Size = p.ActualSize
		}
	}

	response := generateListPartsResponse(listPartsInfo, encodingType)
	encodedSuccessResponse := encodeResponse(response)

	// Write success response.
	writeSuccessResponseXML(w, encodedSuccessResponse)