diff --git a/app/code/core/Mage/Core/Model/Input/Filter/MaliciousCode.php b/app/code/core/Mage/Core/Model/Input/Filter/MaliciousCode.php
index bed2d44cbe4..fe6a2cd64eb 100644
--- a/app/code/core/Mage/Core/Model/Input/Filter/MaliciousCode.php
+++ b/app/code/core/Mage/Core/Model/Input/Filter/MaliciousCode.php
@@ -58,17 +58,15 @@ class Mage_Core_Model_Input_Filter_MaliciousCode implements Zend_Filter_Interfac
      * Filter value
      *
      * @param string|array $value
-     * @return string|array         Filtered value
+     * @return string|array
      */
     public function filter($value)
     {
-        $result = false;
         do {
-            $subject = $result ? $result : $value;
-            $result = preg_replace($this->_expressions, '', $subject, -1, $count);
+            $value = preg_replace($this->_expressions, '', $value, -1, $count);
         } while ($count !== 0);
 
-        return $result;
+        return $value;
     }
 
     /**