diff --git a/src/Formatter/TextPreview/FormatTextPreview.php b/src/Formatter/TextPreview/FormatTextPreview.php
index c3a54fc2..c6c9d9e4 100644
--- a/src/Formatter/TextPreview/FormatTextPreview.php
+++ b/src/Formatter/TextPreview/FormatTextPreview.php
@@ -47,7 +47,7 @@ public function __invoke(Renderer $renderer, $context, string $xml)
                 if ($response->getStatusCode() === 200) {
                     $file_contents = $response->getBody()->getContents();
 
-                    $lines = preg_split('/\R/', $file_contents);
+                    $lines = mb_split('\R', $file_contents);
                     $lines = array_filter($lines, 'trim');
 
                     if (count($lines) <= 5) {