diff --git a/classes/Currency.php b/classes/Currency.php
index f37d47bcd..d92660542 100644
--- a/classes/Currency.php
+++ b/classes/Currency.php
@@ -296,7 +296,7 @@ class CurrencyCore extends ObjectModel
 	 */
 	public static function getIdByIsoCode($iso_code, $id_shop = 0)
 	{
-		$cache_id = 'Currency::getIdByIsoCode'.pSQL($iso_code).'-'.(int)$id_shop;
+		$cache_id = 'Currency::getIdByIsoCode_'.pSQL($iso_code).'-'.(int)$id_shop;
 		if (!Cache::isStored($cache_id))
 		{
 			$query = Currency::getIdByQuery($id_shop);
diff --git a/classes/LocalizationPack.php b/classes/LocalizationPack.php
index 5a738b1a4..6cf02bc8c 100644
--- a/classes/LocalizationPack.php
+++ b/classes/LocalizationPack.php
@@ -63,6 +63,7 @@ class LocalizationPackCore
 
 			if ($install_mode && $res && isset($this->iso_currency))
 			{
+				Cache::clean('Currency::getIdByIsoCode_*');
 				$res &= Configuration::updateValue('PS_CURRENCY_DEFAULT', (int)Currency::getIdByIsoCode($this->iso_currency));
 				Currency::refreshCurrencies();
 			}