diff --git a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/AttributeNameTest.java b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/AttributeNameTest.java
index 882b5135798..1a3493a8e7a 100644
--- a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/AttributeNameTest.java
+++ b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/AttributeNameTest.java
@@ -77,6 +77,7 @@ public class AttributeNameTest
 
         DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
         cacheFactory.setEvictionPolicy(SessionCache.NEVER_EVICT);
+        cacheFactory.setSaveOnCreate(true);
 
         MongoSessionDataStoreFactory storeFactory = MongoTestHelper.newSessionDataStoreFactory(DB_NAME, COLLECTION_NAME);
         storeFactory.setGracePeriodSec(scavengePeriod);