diff --git a/classes/utils/Utilities.class.php b/classes/utils/Utilities.class.php
index cf1c49552..c98f3fdc8 100644
--- a/classes/utils/Utilities.class.php
+++ b/classes/utils/Utilities.class.php
@@ -170,7 +170,7 @@ public static function validateEmail($email)
      */
     public static function isValidFileName($filename)
     {
-        return preg_match('/' .  Config::get('valid_filename_regex') . '/u', $filename);
+        return preg_match('/' .  Config::get('valid_filename_regex') . '$/u', $filename);
     }