diff --git a/danmaku2ass.py b/danmaku2ass.py
index 513e630..b551ba1 100755
--- a/danmaku2ass.py
+++ b/danmaku2ass.py
@@ -277,6 +277,8 @@ def WriteASSHead(f, width, height, fontface, fontsize, alpha, styleid):
     f.write(
 '''\ufeff
 [Script Info]
+; Script generated by Danmaku2ASS
+; https://github.com/m13253/danmaku2ass
 ScriptType: v4.00+
 Collisions: Normal
 PlayResX: %(width)s