diff --git a/htdocs/includes/boxes/box_services_vendus.php b/htdocs/includes/boxes/box_services_vendus.php
index 4e0f3317f15..a886f3e3982 100644
--- a/htdocs/includes/boxes/box_services_vendus.php
+++ b/htdocs/includes/boxes/box_services_vendus.php
@@ -72,14 +72,14 @@ class box_services_vendus extends ModeleBoxes {
             if ($conf->categorie->enabled && !$user->rights->categorie->voir)
             {
               $sql .= ", ".MAIN_DB_PREFIX."categorie_product as cp";
-              $sql .= ", ".MAIN_DB_PREFIX."categorie as c";
+              $sql .= ", ".MAIN_DB_PREFIX."categorie as ca";
             }
             $sql .= " WHERE s.idp = c.fk_soc AND c.rowid = cd.fk_contrat AND cd.fk_product = p.rowid";
             if (!$user->rights->commercial->client->voir && !$user->societe_id) $sql .= " AND s.idp = sc.fk_soc AND sc.fk_user = " .$user->id;
             if ($conf->categorie->enabled && !$user->rights->categorie->voir)
             {
               $sql .= " AND cp.fk_product = p.rowid";
-              $sql .= " AND cp.fk_categorie = c.rowid AND c.visible = 1";
+              $sql .= " AND cp.fk_categorie = ca.rowid AND ca.visible = 1";
             }
             if($user->societe_id)
             {