diff --git a/vendor/magento/module-sales-rule/Model/ResourceModel/Rule.php b/vendor/magento/module-sales-rule/Model/ResourceModel/Rule.php
index d65021e..200029d 100644
--- a/vendor/magento/module-sales-rule/Model/ResourceModel/Rule.php
+++ b/vendor/magento/module-sales-rule/Model/ResourceModel/Rule.php
@@ -305,14 +305,19 @@ class Rule extends AbstractResource
     public function getActiveAttributes()
     {
         $connection = $this->getConnection();
+        $subSelect = $connection->select();
+        $subSelect->reset();
+        $subSelect->from($this->getTable('salesrule_product_attribute'))
+                ->group('attribute_id');
         $select = $connection->select()->from(
-            ['a' => $this->getTable('salesrule_product_attribute')],
-            new \Zend_Db_Expr('DISTINCT ea.attribute_code')
+            ['a' => $subSelect],
+            new \Zend_Db_Expr('ea.attribute_code')
         )->joinInner(
             ['ea' => $this->getTable('eav_attribute')],
             'ea.attribute_id = a.attribute_id',
             []
         );
+
         return $connection->fetchAll($select);
     }