diff --git a/lib/nntp/tiny/session.py b/lib/nntp/tiny/session.py
index 7695ee9..20ec1c1 100644
--- a/lib/nntp/tiny/session.py
+++ b/lib/nntp/tiny/session.py
@@ -738,6 +738,8 @@ class Session():
 
             cr = self.db.execute(sql, (newsgroup.id, message.id))
 
+        self.db.commit()
+
         return True
 
     def _post_impl(self, message_id=None):