diff --git a/src/ComposerRequireChecker/FileLocator/LocateAllFilesByExtension.php b/src/ComposerRequireChecker/FileLocator/LocateAllFilesByExtension.php
index 09cf3aa4..2757a132 100644
--- a/src/ComposerRequireChecker/FileLocator/LocateAllFilesByExtension.php
+++ b/src/ComposerRequireChecker/FileLocator/LocateAllFilesByExtension.php
@@ -12,7 +12,6 @@
 use function implode;
 use function preg_match;
 use function preg_quote;
-use function preg_replace;
 use function str_replace;
 use function trim;
 
@@ -82,7 +81,6 @@ private function prepareBlacklistPatterns(array|null $blacklistPaths): array
             $path = str_replace('/', DIRECTORY_SEPARATOR, $path);
             $path = trim($path, DIRECTORY_SEPARATOR);
             $path = preg_quote($path, '{}');
-            $path = preg_replace('{' . $dirSep . '+}', DIRECTORY_SEPARATOR, $path);
             $path = str_replace('\\*\\*', '.+?', $path);
             $path = str_replace('\\*', '[^' . $dirSep . ']+?', $path);
         }