diff --git a/src/pocketmine/utils/TextFormat.php b/src/pocketmine/utils/TextFormat.php
index fbdf19f88..1c570a8c3 100644
--- a/src/pocketmine/utils/TextFormat.php
+++ b/src/pocketmine/utils/TextFormat.php
@@ -62,7 +62,7 @@ abstract class TextFormat{
 	 * @return array
 	 */
 	public static function tokenize(string $string) : array{
-		return preg_split("/(" . TextFormat::ESCAPE . "[0123456789abcdefklmnor])/", $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
+		return preg_split("/(" . TextFormat::ESCAPE . "[0-9a-fk-or])/", $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
 	}
 
 	/**
@@ -75,7 +75,7 @@ abstract class TextFormat{
 	 */
 	public static function clean(string $string, bool $removeFormat = true) : string{
 		if($removeFormat){
-			return str_replace(TextFormat::ESCAPE, "", preg_replace(["/" . TextFormat::ESCAPE . "[0123456789abcdefklmnor]/", "/\x1b[\\(\\][[0-9;\\[\\(]+[Bm]/"], "", $string));
+			return str_replace(TextFormat::ESCAPE, "", preg_replace(["/" . TextFormat::ESCAPE . "[0-9a-fk-or]/", "/\x1b[\\(\\][[0-9;\\[\\(]+[Bm]/"], "", $string));
 		}
 		return str_replace("\x1b", "", preg_replace("/\x1b[\\(\\][[0-9;\\[\\(]+[Bm]/", "", $string));
 	}