diff --git a/tests/end_to_end/__main__.py b/tests/end_to_end/__main__.py
index c5a4288..17e099a 100644
--- a/tests/end_to_end/__main__.py
+++ b/tests/end_to_end/__main__.py
@@ -857,11 +857,22 @@ if __name__ == '__main__':
                                              "/iq/commands:command/commands:actions/commands:next",
                                              ),
                                              after = partial(save_value, "sessionid", partial(extract_attribute, "/iq[@type='result']/commands:command[@node='hello']", "sessionid"))
-
                              ),
                      partial(send_stanza, "<iq type='set' id='hello-command2' from='{jid_one}/{resource_one}' to='{biboumi_host}'><command xmlns='http://jabber.org/protocol/commands' node='hello' sessionid='{sessionid}' action='next'><x xmlns='jabber:x:data' type='submit'><field var='name'><value>COUCOU</value></field></x></command></iq>"),
                      partial(expect_stanza, "/iq[@type='result']/commands:command[@node='hello'][@status='completed']/commands:note[@type='info'][text()='Hello COUCOU!']")
                  ]),
+        Scenario("execute_incomplete_hello_adhoc_command",
+                 [
+                     handshake_sequence(),
+                     partial(send_stanza, "<iq type='set' id='hello-command1' from='{jid_one}/{resource_one}' to='{biboumi_host}'><command xmlns='http://jabber.org/protocol/commands' node='hello' action='execute' /></iq>"),
+                     partial(expect_stanza, ("/iq[@type='result']/commands:command[@node='hello'][@sessionid][@status='executing']",
+                                             "/iq/commands:command/commands:actions/commands:next",
+                                             ),
+                             after = partial(save_value, "sessionid", partial(extract_attribute, "/iq[@type='result']/commands:command[@node='hello']", "sessionid"))
+                             ),
+                     partial(send_stanza, "<iq type='set' id='hello-command2' from='{jid_one}/{resource_one}' to='{biboumi_host}'><command xmlns='http://jabber.org/protocol/commands' node='hello' sessionid='{sessionid}' action='next'><x xmlns='jabber:x:data' type='submit'></x></command></iq>"),
+                     partial(expect_stanza, "/iq[@type='error']")
+                 ]),
         Scenario("execute_ping_adhoc_command",
                  [
                      handshake_sequence(),