diff --git a/python/tests/test_1_online.py b/python/tests/test_1_online.py
index 85e1774bd..c2df18b5a 100644
--- a/python/tests/test_1_online.py
+++ b/python/tests/test_1_online.py
@@ -703,7 +703,7 @@ def test_mdn_asymmetric(acfactory, lp):
     assert len(chat.get_messages()) == 1
 
     # Wait for the message to be marked as seen on IMAP.
-    ac1._evtracker.get_info_contains("Marked messages 1 in folder DeltaChat as seen.")
+    ac1._evtracker.get_info_contains("Marked messages [0-9]+ in folder DeltaChat as seen.")
 
     # MDN is received even though MDNs are already disabled
     assert msg_out.is_out_mdn_received()