diff --git a/htdocs/compta/bank/class/account.class.php b/htdocs/compta/bank/class/account.class.php
index ed61da3592e..885051bf36e 100644
--- a/htdocs/compta/bank/class/account.class.php
+++ b/htdocs/compta/bank/class/account.class.php
@@ -1519,6 +1519,10 @@ class Account extends CommonObject
 	 */
 	public function needIBAN()
 	{
+		global $conf;
+
+		if ( ! empty($conf->global->MAIN_IBAN_NOT_MANDATORY) ) return 0;
+
 		$country_code = $this->getCountryCode();
 
 		$country_code_in_EEC = array(