diff --git a/lib/rest/rest.go b/lib/rest/rest.go
index 1a746f090..0cdccf028 100644
--- a/lib/rest/rest.go
+++ b/lib/rest/rest.go
@@ -444,6 +444,9 @@ func (api *Client) callCodec(ctx context.Context, opts *Opts, request interface{
 
 		var overhead int64
 		opts.Body, opts.ContentType, overhead, err = MultipartUpload(opts.Body, params, opts.MultipartContentName, opts.MultipartFileName)
+		if err != nil {
+			return nil, err
+		}
 		if opts.ContentLength != nil {
 			*opts.ContentLength += overhead
 		}