diff --git a/tests/end_to_end/scenarios/channel_messages.py b/tests/end_to_end/scenarios/channel_messages.py
index 8ea979c..34228fe 100644
--- a/tests/end_to_end/scenarios/channel_messages.py
+++ b/tests/end_to_end/scenarios/channel_messages.py
@@ -21,15 +21,15 @@ scenario = (
     ),
 
     # Send a channel message
-    send_stanza("<message from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}' type='groupchat'><body>coucou</body></message>"),
+    send_stanza("<message id='first_id' from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}' type='groupchat'><body>coucou</body></message>"),
     # Receive the message, forwarded to the two users
     expect_unordered(
         [
-            "/message[@from='#foo%{irc_server_one}/{nick_one}'][@to='{jid_one}/{resource_one}'][@type='groupchat']/body[text()='coucou']",
+            "/message[@id='first_id'][@from='#foo%{irc_server_one}/{nick_one}'][@to='{jid_one}/{resource_one}'][@type='groupchat']/body[text()='coucou']",
             "/message/stable_id:stanza-id[@by='#foo%{irc_server_one}'][@id]"
         ],
         [
-            "/message[@from='#foo%{irc_server_one}/{nick_one}'][@to='{jid_two}/{resource_one}'][@type='groupchat']/body[text()='coucou']",
+            "/message[@id][@from='#foo%{irc_server_one}/{nick_one}'][@to='{jid_two}/{resource_one}'][@type='groupchat']/body[text()='coucou']",
             "/message/stable_id:stanza-id[@by='#foo%{irc_server_one}'][@id]"
         ]
     ),