diff --git a/Scripts/downloader.py b/Scripts/downloader.py
index 38c3f9d..21dac61 100755
--- a/Scripts/downloader.py
+++ b/Scripts/downloader.py
@@ -32,7 +32,7 @@ class Downloader:
     def get_size(self, size, suff=None):
         if size == -1:
             return "Unknown"
-        ext = ["B","KB","MB","GB","PB"]
+        ext = ["B","KB","MB","GB","TB","PB"]
         s = float(size)
         s_dict = {}
         # Iterate the ext list, and divide by 1000 each time