diff --git a/src/Model/Item.php b/src/Model/Item.php
index ad93b949d9..b061aa1df9 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -2063,7 +2063,7 @@ class Item
 	 */
 	private static function splitByBlocks(string $body): array
 	{
-		if (class_exists('IntlChar')) {
+		if (!class_exists('IntlChar')) {
 			return [$body];
 		}