diff --git a/Magento2/Sniffs/Legacy/ParseXMLTrait.php b/Magento2/Sniffs/Legacy/ParseXMLTrait.php
index 10a9f95b..a81cb06f 100644
--- a/Magento2/Sniffs/Legacy/ParseXMLTrait.php
+++ b/Magento2/Sniffs/Legacy/ParseXMLTrait.php
@@ -13,8 +13,6 @@
 
 trait ParseXMLTrait
 {
-    private const ERROR_CODE_XML = 'WrongXML';
-
     /**
      * Format the incoming XML to avoid tags split into several lines.
      *
@@ -33,7 +31,7 @@ private function getFormattedXML(File $phpcsFile)
             $phpcsFile->addError(
                 "Couldn't parse contents of '%s', check that they are in valid XML format.",
                 0,
-                self::ERROR_CODE_XML,
+                'WrongXML',
                 [
                     Common::stripBasepath($phpcsFile->getFilename(), $phpcsFile->config->basepath),
                 ]