diff --git a/rules/CodeQuality/Rector/FuncCall/SimplifyRegexPatternRector.php b/rules/CodeQuality/Rector/FuncCall/SimplifyRegexPatternRector.php
index 109bfe54b92..088f8d8a126 100644
--- a/rules/CodeQuality/Rector/FuncCall/SimplifyRegexPatternRector.php
+++ b/rules/CodeQuality/Rector/FuncCall/SimplifyRegexPatternRector.php
@@ -21,12 +21,12 @@ final class SimplifyRegexPatternRector extends AbstractRector
      * @var array<string, string>
      */
     private const COMPLEX_PATTERN_TO_SIMPLE = [
-        '[0-9]' => '\\\d',
-        '[a-zA-Z0-9_]' => '\\\w',
-        '[A-Za-z0-9_]' => '\\\w',
-        '[0-9a-zA-Z_]' => '\\\w',
-        '[0-9A-Za-z_]' => '\\\w',
-        '[\r\n\t\f\v ]' => '\\\s',
+        '[0-9]' => "\d",
+        '[a-zA-Z0-9_]' => "\w",
+        '[A-Za-z0-9_]' => "\w",
+        '[0-9a-zA-Z_]' => "\w",
+        '[0-9A-Za-z_]' => "\w",
+        '[\r\n\t\f\v ]' => "\s",
     ];
 
     public function __construct(