diff --git a/htdocs/companybankaccount.class.php b/htdocs/companybankaccount.class.php
index 1d753d2ab31..61e4eb29116 100644
--- a/htdocs/companybankaccount.class.php
+++ b/htdocs/companybankaccount.class.php
@@ -217,7 +217,7 @@ class CompanyBankAccount
 		if (! empty($this->iban))
 		{
 			// If IBAN defined, we can know country of account from it
-			if (preg_match("/^([a-z]{2}/i)",$this->iban,$reg)) return $reg[1];
+			if (preg_match("/^[a-z]{2}/i",$this->iban,$reg)) return $reg[1];
 		}
 
 		// We return country code