diff --git a/Services/FileManager.php b/Services/FileManager.php
index 44a2bb0..ff7e018 100644
--- a/Services/FileManager.php
+++ b/Services/FileManager.php
@@ -108,7 +108,7 @@ public function syncFiles($options = array())
                 throw new \Exception("to_folder does not exist");
             }
             $result = null;
-            system("rsync -a --delete " . escapeshellarg($from . '/') . " " . escapeshellarg($to), $result);
+            system("rsync -a " . escapeshellarg($from . '/') . " " . escapeshellarg($to), $result);
             if ($result !== 0)
             {
                 throw new \Exception("Sync failed with errorcode '$result'!");