diff --git a/application/models/infoMetas_model.php b/application/models/infoMetas_model.php
index 69cb2843..004c2f16 100644
--- a/application/models/infoMetas_model.php
+++ b/application/models/infoMetas_model.php
@@ -176,7 +176,7 @@ class InfoMetas_model extends CI_Model {
                 . "SET    im_value    = N? \n"
                 . "WHERE  im_ic_id    = ? \n"
                 . "       AND im_key  = ?";
-        return $this->HT->query($sql, array($im_value, $im_ic_id, $im_key));
+        return $this->HT->query($sql, array((string)$im_value, $im_ic_id, $im_key));
     }
 
     function delete($im_ic_id, $im_key) {