diff --git a/src/Standards/Typo3Update/Sniffs/Legacy/ClassnamesSniff.php b/src/Standards/Typo3Update/Sniffs/Legacy/ClassnamesSniff.php
index 16cc3d2..2cf11d0 100644
--- a/src/Standards/Typo3Update/Sniffs/Legacy/ClassnamesSniff.php
+++ b/src/Standards/Typo3Update/Sniffs/Legacy/ClassnamesSniff.php
@@ -45,7 +45,7 @@ class Typo3Update_Sniffs_Legacy_ClassnamesSniff implements PHP_CodeSniffer_Sniff
      *
      * @see http://php.net/manual/en/tokens.php
      *
-     * @return array(int)
+     * @return array<int>
      */
     public function register()
     {
@@ -74,6 +74,10 @@ class Typo3Update_Sniffs_Legacy_ClassnamesSniff implements PHP_CodeSniffer_Sniff
         $classnamePosition = $phpcsFile->findNext(T_STRING, $stackPtr);
         $classname = $tokens[$classnamePosition]['content'];
 
+        if ($classnamePosition === false) {
+            return;
+        }
+
         if ($this->isLegacyClassname($classname)) {
             $fix = $phpcsFile->addFixableError(
                 'Legacy classes are not allowed; found %s',