diff --git a/lib/private/Preview/PreviewMigrationService.php b/lib/private/Preview/PreviewMigrationService.php
index d3db56fc69cb1..4aa7cb9c26930 100644
--- a/lib/private/Preview/PreviewMigrationService.php
+++ b/lib/private/Preview/PreviewMigrationService.php
@@ -83,6 +83,8 @@ public function migrateFileId(int $fileId, bool $flatPath): array {
 		}
 
 		if (empty($previewFiles)) {
+			$this->deleteFolder($internalPath);
+
 			return $previews;
 		}