diff --git a/httpclient/multipartrequest.go b/httpclient/multipartrequest.go
index f67fa17..3b9491a 100644
--- a/httpclient/multipartrequest.go
+++ b/httpclient/multipartrequest.go
@@ -65,7 +65,7 @@ type UploadState struct {
 //
 // // Use `result` or `resp` as needed
 func (c *Client) DoMultiPartRequest(method, endpoint string, files map[string][]string, formDataFields map[string]string, fileContentTypes map[string]string, formDataPartHeaders map[string]http.Header, encodingType string, out interface{}) (*http.Response, error) {
-	if encodingType != "raw" && encodingType != "base64" {
+	if encodingType != "byte" && encodingType != "base64" {
 		c.Sugar.Errorw("Invalid encoding type specified", zap.String("encodingType", encodingType))
 		return nil, fmt.Errorf("invalid encoding type: %s. Must be 'raw' or 'base64'", encodingType)
 	}