diff --git a/src/session.py b/src/session.py
index b5a49b4b9..608cf8d56 100644
--- a/src/session.py
+++ b/src/session.py
@@ -112,7 +112,7 @@ class ChatControlSession(stanza_session.EncryptedStanzaSession):
 						full_jid_with_resource.encode())
 
 					if self.control:
-						control.update_ui()
+						self.control.update_ui()
 
 					ctx = gajim.otr_module. \
 						otrl_context_find(