diff --git a/app/code/Magento/Config/App/Config/Source/DumpConfigSourceAggregated.php b/app/code/Magento/Config/App/Config/Source/DumpConfigSourceAggregated.php
index f8dfe1f5b5802318dcb038145e1f5526932383e3..80567d0504ee9c31d8cadef957c1d12dad9f1508 100644
--- a/app/code/Magento/Config/App/Config/Source/DumpConfigSourceAggregated.php
+++ b/app/code/Magento/Config/App/Config/Source/DumpConfigSourceAggregated.php
@@ -9,6 +9,9 @@ use Magento\Config\Model\Config\Export\ExcludeList;
 use Magento\Framework\App\Config\ConfigSourceInterface;
 use Magento\Framework\App\Config\ScopeConfigInterface;
 
+/**
+ * Class DumpConfigSourceAggregated aggregates configurations from all available sources
+ */
 class DumpConfigSourceAggregated implements DumpConfigSourceInterface
 {
     /**