diff --git a/PgnParser.php b/PgnParser.php
index 20d8909..b12b733 100644
--- a/PgnParser.php
+++ b/PgnParser.php
@@ -24,8 +24,12 @@ class PgnParser
         $extension = $this->getExtension($filePath);
         if($extension != 'pgn')return null;
         if(substr($filePath,0,1)==="/")return null;
+        $filePath = preg_replace("/[^0-9\.a-z_\-\/]/si", "", $filePath);
+
         if(!file_exists($filePath))return null;
-        return preg_replace("/[^0-9\.a-z_\-\/]/si", "", $filePath);
+
+        return $filePath;
+
     }
 
     private function getExtension($filePath){