diff --git a/htdocs/fourn/commande/list.php b/htdocs/fourn/commande/list.php
index 7b5fc220357..4b2d08f18d8 100644
--- a/htdocs/fourn/commande/list.php
+++ b/htdocs/fourn/commande/list.php
@@ -501,7 +501,7 @@ $help_url = '';
 // llxHeader('',$title,$help_url);
 
 $sql = 'SELECT';
-if ($sall || $search_product_category > 0 || $search_user > 0) $sql = 'SELECT DISTINCT';
+if ($sall || $search_product_category > 0) $sql = 'SELECT DISTINCT';
 $sql .= ' s.rowid as socid, s.nom as name, s.town, s.zip, s.fk_pays, s.client, s.code_client, s.email,';
 $sql .= " typent.code as typent_code,";
 $sql .= " state.code_departement as state_code, state.nom as state_name,";
@@ -531,11 +531,6 @@ $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."user as u ON cf.fk_user_author = u.rowid";
 $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."projet as p ON p.rowid = cf.fk_projet";
 // We'll need this table joined to the select in order to filter by sale
 if ($search_sale > 0 || (!$user->rights->societe->client->voir && !$socid)) $sql .= ", ".MAIN_DB_PREFIX."societe_commerciaux as sc";
-if ($search_user > 0)
-{
-	$sql .= ", ".MAIN_DB_PREFIX."element_contact as ec";
-	$sql .= ", ".MAIN_DB_PREFIX."c_type_contact as tc";
-}
 $sql .= ' WHERE cf.fk_soc = s.rowid';
 $sql .= ' AND cf.entity IN ('.getEntity('supplier_order').')';
 if ($socid > 0) $sql .= " AND s.rowid = ".$socid;
@@ -561,7 +556,15 @@ if ($search_country) $sql .= " AND s.fk_pays IN (".$db->escape($search_country).
 if ($search_type_thirdparty) $sql .= " AND s.fk_typent IN (".$db->escape($search_type_thirdparty).')';
 if ($search_company) $sql .= natural_search('s.nom', $search_company);
 if ($search_sale > 0) $sql .= " AND s.rowid = sc.fk_soc AND sc.fk_user = ".$db->escape($search_sale);
-if ($search_user > 0) $sql .= " AND ec.fk_c_type_contact = tc.rowid AND tc.element='supplier_order' AND tc.source='internal' AND ec.element_id = cf.rowid AND ec.fk_socpeople = ".$db->escape($search_user);
+if ($search_user > 0) {
+	$sql .= " AND EXISTS (";
+	$sql .= " SELECT ec.rowid ";
+	$sql .= " FROM " . MAIN_DB_PREFIX . "element_contact as ec";
+	$sql .= " INNER JOIN " . MAIN_DB_PREFIX . "c_type_contact as tc ON tc.rowid = ec.fk_c_type_contact";
+	$sql .= " WHERE ec.element_id = cf.rowid AND ec.fk_socpeople = " . ((int) $search_user);
+	$sql .= " AND tc.element = 'order_supplier' AND tc.source = 'internal'";
+	$sql .= ")";
+}
 if ($search_total_ht != '') $sql .= natural_search('cf.total_ht', $search_total_ht, 1);
 if ($search_total_vat != '') $sql .= natural_search('cf.tva', $search_total_vat, 1);
 if ($search_total_ttc != '') $sql .= natural_search('cf.total_ttc', $search_total_ttc, 1);