diff --git a/src/Symfony/Component/String/AbstractUnicodeString.php b/src/Symfony/Component/String/AbstractUnicodeString.php
index db810cb6ddcdf..767f62320cd17 100644
--- a/src/Symfony/Component/String/AbstractUnicodeString.php
+++ b/src/Symfony/Component/String/AbstractUnicodeString.php
@@ -492,7 +492,7 @@ public function width(bool $ignoreAnsiDecoration = true): int
         foreach (explode("\n", $s) as $s) {
             if ($ignoreAnsiDecoration) {
                 $s = preg_replace('/(?:\x1B(?:
-                    \[ [\x30-\x3F]*+ [\x20-\x2F]*+ [0x40-\x7E]
+                    \[ [\x30-\x3F]*+ [\x20-\x2F]*+ [\x40-\x7E]
                     | [P\]X^_] .*? \x1B\\\\
                     | [\x41-\x7E]
                 )|[\p{Cc}\x7F]++)/xu', '', $s);