diff --git a/app/chain/download.py b/app/chain/download.py
index 6cc1d8f6..697dc3a8 100644
--- a/app/chain/download.py
+++ b/app/chain/download.py
@@ -324,6 +324,7 @@ class DownloadChain(ChainBase):
             self.post_message(
                 Notification(
                     channel=channel,
+                    source=source if channel else None,
                     mtype=NotificationType.Download,
                     ctype=ContentType.DownloadAdded,
                     image=_media.get_message_image(),