diff --git a/Helper/Data.php b/Helper/Data.php
index 0e9f68b9..2408d5f3 100755
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -1087,6 +1087,10 @@ public function loadListCustomers($listId, $email)
     public function getTableName($tableName, $conn = ResourceConnection::DEFAULT_CONNECTION)
     {
         $connection = $this->_resource->getConnection($conn);
+        $tablePrefix = $this->_resource->getTablePrefix();
+        if ($tablePrefix && strpos($tableName, $tablePrefix) !== 0) {
+            $tableName = $tablePrefix . $tableName;
+        }
         return $connection->getTableName($tableName, $conn);
     }
     public function getWebsiteId($storeId)