diff --git a/Block/Adminhtml/Product/Edit/NewVideo.php b/Block/Adminhtml/Product/Edit/NewVideo.php
index 700bfc6..b31598a 100644
--- a/Block/Adminhtml/Product/Edit/NewVideo.php
+++ b/Block/Adminhtml/Product/Edit/NewVideo.php
@@ -148,7 +148,7 @@ protected function getPlaceholderUrl()
         $configPaths = [
             'catalog/placeholder/image_placeholder',
             'catalog/placeholder/small_image_placeholder',
-            'thumbnail_placeholder',
+            'catalog/placeholder/thumbnail_placeholder',
         ];
         foreach ($configPaths as $configPath) {
             if (($path = $storeManager->getStore()->getConfig($configPath))) {