diff --git a/htdocs/contact/list.php b/htdocs/contact/list.php
index 5aacbc2f16f..f786e73d17a 100644
--- a/htdocs/contact/list.php
+++ b/htdocs/contact/list.php
@@ -290,7 +290,7 @@ if ($search_firstname)              $sql.= natural_search('p.firstname', $search
 if ($search_societe)                $sql.= natural_search('s.nom', $search_societe);
 if (strlen($search_poste))          $sql.= natural_search('p.poste', $search_poste);
 if (strlen($search_phone_perso))    $sql.= natural_search('p.phone_perso', $search_phone_perso);
-if (strlen($search_phone_pro))      $sql.= natural_search('p.phone', $search_phone);
+if (strlen($search_phone_pro))      $sql.= natural_search('p.phone', $search_phone_pro);
 if (strlen($search_phone_mobile))   $sql.= natural_search('p.phone_mobile', $search_phone_mobile);
 if (strlen($search_fax))            $sql.= natural_search('p.fax', $search_fax);
 if (strlen($search_skype))          $sql.= natural_search('p.skype', $search_skype);