diff --git a/classes/Currency.php b/classes/Currency.php
index 6740dd955..bf9cca614 100644
--- a/classes/Currency.php
+++ b/classes/Currency.php
@@ -81,6 +81,7 @@ class CurrencyCore extends ObjectModel
 
 	/** @var array Currency cache */
 	static protected $currencies = array();
+	protected static $countActiveCurrencies = array();
 
 	protected $webserviceParameters = array(
 		'objectsNodeName' => 'currencies',
@@ -414,5 +415,23 @@ class CurrencyCore extends ObjectModel
 			self::$currencies[(int)($id)] = new Currency($id);
 		return self::$currencies[(int)($id)];
 	}
-}
+	
+	public static function countActiveCurrencies($id_shop = null)
+	{
+		if ($id_shop === null)
+			$id_shop = (int)Context::getContext()->shop->id;
 
+		if (!isset(self::$countActiveCurrencies[$id_shop]))
+			self::$countActiveCurrencies[$id_shop] = Db::getInstance()->getValue('
+				SELECT COUNT(DISTINCT c.id_currency) FROM `'._DB_PREFIX_.'currency` c
+				LEFT JOIN '._DB_PREFIX_.'currency_shop cs ON (cs.id_currency = c.id_currency AND cs.id_shop = '.(int)$id_shop.')
+				WHERE c.`active` = 1
+			');
+		return self::$countActiveCurrencies[$id_shop];
+	}
+
+	public static function isMultiCurrencyActivated($id_shop = null)
+	{
+		return (Currency::countActiveCurrencies($id_shop) > 1);
+	}
+}
\ No newline at end of file
diff --git a/classes/module/Module.php b/classes/module/Module.php
index 79ec715c1..4e86ca7ba 100644
--- a/classes/module/Module.php
+++ b/classes/module/Module.php
@@ -1630,15 +1630,18 @@ abstract class ModuleCore
 	
 	protected function getCacheId($name = null)
 	{
-		$cache_array = array(
-			$name !== null ? $name : $this->name,
-			(int)Tools::usingSecureMode(),
-			(int)$this->context->shop->id,
-			(int)Group::getCurrent()->id,
-			(int)$this->context->language->id,
-			(int)$this->context->currency->id,
-			(int)$this->context->country->id
-		);
+		$cache_array = array();
+		$cache_array[] = $name !== null ? $name : $this->name;
+		if (Configuration::get('PS_SSL_ENABLED'))
+			$cache_array[] = (int)Tools::usingSecureMode();
+		if (Shop::isFeatureActive())
+			$cache_array[] = (int)$this->context->shop->id;
+		$cache_array[] = (int)Group::getCurrent()->id;
+		if (Language::isMultiLanguageActivated())
+			$cache_array[] = (int)$this->context->language->id;
+		if (Currency::isMultiCurrencyActivated())
+			$cache_array[] = (int)$this->context->currency->id;
+		$cache_array[] = (int)$this->context->country->id;
 		return implode('|', $cache_array);
 	}
 
diff --git a/modules/blockcurrencies/blockcurrencies.php b/modules/blockcurrencies/blockcurrencies.php
index 2841b1dd5..34eda8b86 100644
--- a/modules/blockcurrencies/blockcurrencies.php
+++ b/modules/blockcurrencies/blockcurrencies.php
@@ -53,7 +53,7 @@ class BlockCurrencies extends Module
 		if (Configuration::get('PS_CATALOG_MODE'))
 			return false;
 
-		if (!count(Currency::getCurrencies()))
+		if (!Currency::isMultiCurrencyActivated())
 			return false;
 
 		$this->smarty->assign('blockcurrencies_sign', $this->context->currency->sign);