diff --git a/classes/Currency.php b/classes/Currency.php
index d879a9b65..5b227105a 100644
--- a/classes/Currency.php
+++ b/classes/Currency.php
@@ -115,7 +115,7 @@ class CurrencyCore extends ObjectModel
 	 */
 	public function add($autodate = true, $nullValues = false)
 	{
-		return Currency::exists($this->iso_code) ? false : parent::add();
+		return Currency::exists($this->iso_code, $this->iso_code_num) ? false : parent::add();
 	}
 
 	/**
diff --git a/classes/LocalizationPack.php b/classes/LocalizationPack.php
index 220043cbd..5104e2afb 100644
--- a/classes/LocalizationPack.php
+++ b/classes/LocalizationPack.php
@@ -243,7 +243,7 @@ class LocalizationPackCore
 			foreach ($xml->currencies->currency as $data)
 			{
 				$attributes = $data->attributes();
-				if (Currency::exists($attributes['iso_code']))
+				if (Currency::exists($attributes['iso_code'], (int)$attributes['iso_code_num']))
 					continue;
 				$currency = new Currency();
 				$currency->name = (string)$attributes['name'];
@@ -260,7 +260,7 @@ class LocalizationPackCore
 					$this->_errors[] = Tools::displayError('Invalid currency properties.');
 					return false;
 				}
-				if (!Currency::exists($currency->iso_code))
+				if (!Currency::exists($currency->iso_code, $currency->iso_code_num))
 				{
 					if (!$currency->add())
 					{