diff --git a/demo/complex2s/midpoint-objects/resources/resource-grouper.xml b/demo/complex2s/midpoint-objects/resources/resource-grouper.xml
index f21c797..0e0f802 100644
--- a/demo/complex2s/midpoint-objects/resources/resource-grouper.xml
+++ b/demo/complex2s/midpoint-objects/resources/resource-grouper.xml
@@ -153,6 +153,11 @@
                     </expression>
                 </q:equal>
             </correlation>
+            <reaction>
+                <situation>linked</situation>
+                <channel>http://midpoint.evolveum.com/xml/ns/public/provisioning/channels-3#asyncUpdate</channel>
+                <synchronize>false</synchronize>
+            </reaction>
             <reaction>
                 <situation>linked</situation>
                 <synchronize>true</synchronize>