diff --git a/Command/ImportYouTubeExternalPlayerCommand.php b/Command/ImportYouTubeExternalPlayerCommand.php
index 69a7384..9823615 100644
--- a/Command/ImportYouTubeExternalPlayerCommand.php
+++ b/Command/ImportYouTubeExternalPlayerCommand.php
@@ -60,6 +60,10 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             $progressBar->advance();
             ++$count;
 
+            if (!empty($multimediaObject->external())) {
+                continue;
+            }
+
             $this->updateMultimediaObject($multimediaObject);
 
             if (0 == $count % 50) {
@@ -88,6 +92,7 @@ private function updateMultimediaObject(MultimediaObject $multimediaObject): voi
         $externalLink = 'https://www.youtube.com/embed/'.$multimediaObject->getProperty('youtube_import_id');
         $externalMedia = $this->createExternalMedia($externalLink);
         $multimediaObject->addExternal($externalMedia);
+        $multimediaObject->setExternalType();
     }
 
     private function createExternalMedia(string $externalLink): MediaInterface