diff --git a/htdocs/fourn/facture/list.php b/htdocs/fourn/facture/list.php
index 8b83048d8d3..e77ae1fea28 100644
--- a/htdocs/fourn/facture/list.php
+++ b/htdocs/fourn/facture/list.php
@@ -564,7 +564,7 @@ if ($search_multicurrency_montant_ttc != '') {
 	$sql .= natural_search('f.multicurrency_total_ttc', $search_multicurrency_montant_ttc, 1);
 }
 if ($search_login) {
-	$sql .= natural_search('u.login', $search_login);
+	$sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_login);
 }
 if ($search_status != '' && $search_status >= 0) {
 	$sql .= " AND f.fk_statut = ".((int) $search_status);
diff --git a/htdocs/mrp/mo_movements.php b/htdocs/mrp/mo_movements.php
index 3b1ac109e5d..f7c25a1ec83 100644
--- a/htdocs/mrp/mo_movements.php
+++ b/htdocs/mrp/mo_movements.php
@@ -468,7 +468,7 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 		$sql .= natural_search('e.rowid', $search_warehouse, 2);
 	}
 	if (!empty($search_user)) {
-		$sql .= natural_search('u.login', $search_user);
+		$sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_user);
 	}
 	if (!empty($search_batch)) {
 		$sql .= natural_search('m.batch', $search_batch);
diff --git a/htdocs/product/stock/movement_card.php b/htdocs/product/stock/movement_card.php
index 25dac24b592..f9c0778eea4 100644
--- a/htdocs/product/stock/movement_card.php
+++ b/htdocs/product/stock/movement_card.php
@@ -489,7 +489,7 @@ if ($search_warehouse != '' && $search_warehouse != '-1') {
 	$sql .= natural_search('e.rowid', $search_warehouse, 2);
 }
 if (!empty($search_user)) {
-	$sql .= natural_search('u.login', $search_user);
+	$sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_user);
 }
 if (!empty($search_batch)) {
 	$sql .= natural_search('m.batch', $search_batch);
diff --git a/htdocs/supplier_proposal/list.php b/htdocs/supplier_proposal/list.php
index a64ac94b169..c881203b2d8 100644
--- a/htdocs/supplier_proposal/list.php
+++ b/htdocs/supplier_proposal/list.php
@@ -364,7 +364,7 @@ if ($search_societe) {
 	$sql .= natural_search('s.nom', $search_societe);
 }
 if ($search_login) {
-	$sql .= natural_search('u.login', $search_login);
+	$sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_login);
 }
 if ($search_montant_ht) {
 	$sql .= natural_search('sp.total_ht=', $search_montant_ht, 1);