diff --git a/htdocs/accountancy/class/accountingaccount.class.php b/htdocs/accountancy/class/accountingaccount.class.php
index 55e463a73f6..52f71378025 100644
--- a/htdocs/accountancy/class/accountingaccount.class.php
+++ b/htdocs/accountancy/class/accountingaccount.class.php
@@ -171,6 +171,7 @@ class AccountingAccount extends CommonObject
 				$sql .= " a.rowid = " . (int) $rowid;
 			} elseif ($account_number) {
 				$sql .= " a.account_number = '" . $this->db->escape($account_number) . "'";
+				$sql .= " AND a.entity = ".$conf->entity;
 			}
 			if (! empty($limittocurrentchart)) {
 				$sql .= ' AND a.fk_pcg_version IN (SELECT pcg_version FROM ' . MAIN_DB_PREFIX . 'accounting_system WHERE rowid=' . $this->db->escape($conf->global->CHARTOFACCOUNTS) . ')';