diff --git a/model/mFormula.php b/model/mFormula.php
index fb570c6..984c5e8 100644
--- a/model/mFormula.php
+++ b/model/mFormula.php
@@ -335,7 +335,7 @@ class mFormula extends mBase {
             if ($matches) {
                 $herb_name = str_replace(array('（', '）'), '', trim($matches[1] . $matches[2]));
                 $herb_num = str_replace(array('（', '）'), '', trim($matches[3] . $matches[4]));
-                $herb_desc = isset($matches[5]) ? str_replace(array('（', '）'), '', trim($matches[4])) : "";
+                $herb_desc = isset($matches[5]) ? str_replace(array('（', '）'), '', trim($matches[5])) : "";
 
                 $herb_arr[] = array(
                     'herb_name' => $herb_name,