diff --git a/lib/private/Streamer.php b/lib/private/Streamer.php
index ae50b669b6723..23029d989128a 100644
--- a/lib/private/Streamer.php
+++ b/lib/private/Streamer.php
@@ -132,7 +132,7 @@ public function addDirRecursive(string $dir, string $internalDir = ''): void {
 				fclose($fh);
 			} elseif ($file instanceof Folder) {
 				if($file->isReadable()) {
-					$this->addDirRecursive($file->getName(), $internalDir);
+					$this->addDirRecursive($dir . '/' . $file->getName(), $internalDir);
 				}
 			}
 		}