diff --git a/internal/worker/notifications.go b/internal/worker/notifications.go
index 7102d26..6240b32 100644
--- a/internal/worker/notifications.go
+++ b/internal/worker/notifications.go
@@ -460,6 +460,7 @@ func payloadFromMessage(acct domain.Account, msg *reddit.Thing, badgeCount int)
 			AlertTitle(title).
 			AlertSubtitle(postTitle).
 			Category("inbox-private-message").
+			Custom("comment_id", msg.ID).
 			Custom("type", "private-message")
 	}