diff --git a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/allowed.xml b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/allowed.xml
index 884b453aa..58f0b484f 100644
--- a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/allowed.xml
+++ b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/allowed.xml
@@ -29,3 +29,5 @@ Voice-Message: 7/2 (3/6)
 	</send>
 
     <recv response="200" crlf="true"/>
+
+</scenario>
\ No newline at end of file
diff --git a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/not_allowed.xml b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/not_allowed.xml
index 4f415e164..3bc803355 100644
--- a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/not_allowed.xml
+++ b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/sipp/not_allowed.xml
@@ -29,3 +29,5 @@ Voice-Message: 7/2 (3/6)
 	</send>
 
     <recv response="404" crlf="true"/>
+
+</scenario>
\ No newline at end of file
diff --git a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/test-config.yaml b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/test-config.yaml
index 62e5c0b6f..ab832124f 100644
--- a/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/test-config.yaml
+++ b/tests/channels/pjsip/subscriptions/mwi/unsolicited/incoming/test-config.yaml
@@ -22,10 +22,14 @@ sipp-config:
     fail-on-any: True
     stop-after-scenarios: False
     test-iterations:
+#   Don't be tempted to run the sipp scenarios in parallel.  The test ends when the TestEvent
+#   for the "not allowed" scenario arrives so if Asterisk happens to send it before the
+#   TestEvent for the "allowed" scenario the test will end with an "Event occurred 0 times."
         -
             scenarios:
-#   Kick both sipp scenarios off at the same time since they're hitting different endpoints
                 - {'key-args': { 'scenario': 'allowed.xml', '-s': 'allowed', '-p': '5061' }}
+        -
+            scenarios:
                 - {'key-args': { 'scenario': 'not_allowed.xml', '-s': 'not_allowed', '-p': '5062' }}
 
 ami-action-config: