diff --git a/src/app/code/community/Smile/ElasticSearch/Helper/Data.php b/src/app/code/community/Smile/ElasticSearch/Helper/Data.php
index 5566cd61..65b9351b 100644
--- a/src/app/code/community/Smile/ElasticSearch/Helper/Data.php
+++ b/src/app/code/community/Smile/ElasticSearch/Helper/Data.php
@@ -85,7 +85,10 @@ public function getLanguageCodeByLocaleCode($localeCode)
      */
     public function getLanguageCodeByStore($store = null)
     {
-        return $this->getLanguageCodeByLocaleCode($this->getLocaleCode($store));
+        if (!isset($this->_languageCodes[$store->getStoreId()])) {
+            $this->_languageCodes[$store->getStoreId()] = $this->getLanguageCodeByLocaleCode($this->getLocaleCode($store));
+        }
+        return $this->_languageCodes[$store->getStoreId()];
     }
 
     /**