diff --git a/htdocs/compta/facture/list.php b/htdocs/compta/facture/list.php
index fb27f03d72a..40b672cbd9e 100644
--- a/htdocs/compta/facture/list.php
+++ b/htdocs/compta/facture/list.php
@@ -537,7 +537,7 @@ if ($search_multicurrency_tx != '') $sql .= natural_search('f.multicurrency_tx',
 if ($search_multicurrency_montant_ht != '') $sql .= natural_search('f.multicurrency_total_ht', $search_multicurrency_montant_ht, 1);
 if ($search_multicurrency_montant_vat != '') $sql .= natural_search('f.multicurrency_total_tva', $search_multicurrency_montant_vat, 1);
 if ($search_multicurrency_montant_ttc != '') $sql .= natural_search('f.multicurrency_total_ttc', $search_multicurrency_montant_ttc, 1);
-if ($search_login) $sql .= natural_search('u.login', $search_login);
+if ($search_login) $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_login);
 if ($search_categ_cus > 0) $sql .= " AND cc.fk_categorie = ".$db->escape($search_categ_cus);
 if ($search_categ_cus == -2)   $sql .= " AND cc.fk_categorie IS NULL";
 if ($search_status != '-1' && $search_status != '')
diff --git a/htdocs/fourn/facture/list.php b/htdocs/fourn/facture/list.php
index 83e87e9b0f6..ab5fbe05e03 100644
--- a/htdocs/fourn/facture/list.php
+++ b/htdocs/fourn/facture/list.php
@@ -461,7 +461,7 @@ if ($search_multicurrency_tx != '') $sql .= natural_search('f.multicurrency_tx',
 if ($search_multicurrency_montant_ht != '') $sql .= natural_search('f.multicurrency_total_ht', $search_multicurrency_montant_ht, 1);
 if ($search_multicurrency_montant_vat != '') $sql .= natural_search('f.multicurrency_total_tva', $search_multicurrency_montant_vat, 1);
 if ($search_multicurrency_montant_ttc != '') $sql .= natural_search('f.multicurrency_total_ttc', $search_multicurrency_montant_ttc, 1);
-if ($search_login) $sql .= natural_search('u.login', $search_login);
+if ($search_login) $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_login);
 if ($search_status != '' && $search_status >= 0) $sql .= " AND f.fk_statut = ".$db->escape($search_status);
 if ($search_paymentmode > 0) $sql .= " AND f.fk_mode_reglement = ".((int) $search_paymentmode);
 if ($search_paymentcond > 0) $sql .= " AND f.fk_cond_reglement = ".((int) $search_paymentcond);
diff --git a/htdocs/mrp/mo_movements.php b/htdocs/mrp/mo_movements.php
index 600563f6cfd..c1d51bea6b0 100644
--- a/htdocs/mrp/mo_movements.php
+++ b/htdocs/mrp/mo_movements.php
@@ -428,7 +428,7 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 	if (!empty($search_product_ref))   $sql .= natural_search('p.ref', $search_product_ref);
 	if (!empty($search_product))       $sql .= natural_search('p.label', $search_product);
 	if ($search_warehouse != '' && $search_warehouse != '-1')          $sql .= natural_search('e.rowid', $search_warehouse, 2);
-	if (!empty($search_user))          $sql .= natural_search('u.login', $search_user);
+	if (!empty($search_user))          $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_user);
 	if (!empty($search_batch))         $sql .= natural_search('m.batch', $search_batch);
 	if ($search_qty != '')				$sql .= natural_search('m.value', $search_qty, 1);
 	if ($search_type_mouvement != '' && $search_type_mouvement != '-1')	$sql .= natural_search('m.type_mouvement', $search_type_mouvement, 2);
diff --git a/htdocs/product/stock/movement_card.php b/htdocs/product/stock/movement_card.php
index cf3cc67bdc2..5921679b238 100644
--- a/htdocs/product/stock/movement_card.php
+++ b/htdocs/product/stock/movement_card.php
@@ -464,7 +464,7 @@ if (!empty($search_inventorycode)) $sql .= natural_search('m.inventorycode', $se
 if (!empty($search_product_ref))   $sql .= natural_search('p.ref', $search_product_ref);
 if (!empty($search_product))       $sql .= natural_search('p.label', $search_product);
 if ($search_warehouse != '' && $search_warehouse != '-1')          $sql .= natural_search('e.rowid', $search_warehouse, 2);
-if (!empty($search_user))          $sql .= natural_search('u.login', $search_user);
+if (!empty($search_user))          $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login')', $search_user);
 if (!empty($search_batch))         $sql .= natural_search('m.batch', $search_batch);
 if ($search_qty != '')				$sql .= natural_search('m.value', $search_qty, 1);
 if ($search_type_mouvement != '' && $search_type_mouvement != '-1')	$sql .= natural_search('m.type_mouvement', $search_type_mouvement, 2);
diff --git a/htdocs/product/stock/movement_list.php b/htdocs/product/stock/movement_list.php
index 47e28939e05..fa9cd293e1a 100644
--- a/htdocs/product/stock/movement_list.php
+++ b/htdocs/product/stock/movement_list.php
@@ -490,7 +490,7 @@ if (!empty($search_inventorycode)) $sql .= natural_search('m.inventorycode', $se
 if (!empty($search_product_ref))   $sql .= natural_search('p.ref', $search_product_ref);
 if (!empty($search_product))       $sql .= natural_search('p.label', $search_product);
 if ($search_warehouse != '' && $search_warehouse != '-1')          $sql .= natural_search('e.rowid', $search_warehouse, 2);
-if (!empty($search_user))          $sql .= natural_search('u.login', $search_user);
+if (!empty($search_user))          $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_user);
 if (!empty($search_batch))         $sql .= natural_search('m.batch', $search_batch);
 if (!empty($product_id))           $sql .= natural_search('p.rowid', $product_id);
 if ($search_qty != '')				$sql .= natural_search('m.value', $search_qty, 1);
diff --git a/htdocs/product/stock/replenishorders.php b/htdocs/product/stock/replenishorders.php
index c73c7b1ca39..9ee5ad40fd5 100644
--- a/htdocs/product/stock/replenishorders.php
+++ b/htdocs/product/stock/replenishorders.php
@@ -132,7 +132,7 @@ if (!$user->rights->societe->client->voir && !$socid) {
 }
 if ($sref) $sql .= natural_search('cf.ref', $sref);
 if ($snom) $sql .= natural_search('s.nom', $snom);
-if ($suser) $sql .= natural_search('u.login', $suser);
+if ($suser) $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $suser);
 if ($sttc) $sql .= natural_search('cf.total_ttc', $sttc, 1);
 $sql .= dolSqlDateFilter('cf.date_creation', $search_dateday, $search_datemonth, $search_dateyear);
 if ($sall) $sql .= natural_search(array('cf.ref', 'cf.note'), $sall);
diff --git a/htdocs/supplier_proposal/list.php b/htdocs/supplier_proposal/list.php
index 421ac40b447..ae1336c49d2 100644
--- a/htdocs/supplier_proposal/list.php
+++ b/htdocs/supplier_proposal/list.php
@@ -297,7 +297,7 @@ if ($search_country) $sql .= " AND s.fk_pays IN (".$search_country.')';
 if ($search_type_thirdparty) $sql .= " AND s.fk_typent IN (".$search_type_thirdparty.')';
 if ($search_ref)     $sql .= natural_search('sp.ref', $search_ref);
 if ($search_societe) $sql .= natural_search('s.nom', $search_societe);
-if ($search_login)  $sql .= natural_search('u.login', $search_login);
+if ($search_login)  $sql .= natural_search(array('u.lastname', 'u.firstname', 'u.login'), $search_login);
 if ($search_montant_ht) $sql .= natural_search('sp.total_ht=', $search_montant_ht, 1);
 if ($search_montant_vat != '') $sql .= natural_search("sp.tva", $search_montant_vat, 1);
 if ($search_montant_ttc != '') $sql .= natural_search("sp.total", $search_montant_ttc, 1);