diff --git a/modules/data-streams/src/javaRestTest/java/org/elasticsearch/datastreams/logsdb/qa/StandardVersusLogsIndexModeRandomDataChallengeRestIT.java b/modules/data-streams/src/javaRestTest/java/org/elasticsearch/datastreams/logsdb/qa/StandardVersusLogsIndexModeRandomDataChallengeRestIT.java
index b269e8a3a6424..ef6f37a3a88c9 100644
--- a/modules/data-streams/src/javaRestTest/java/org/elasticsearch/datastreams/logsdb/qa/StandardVersusLogsIndexModeRandomDataChallengeRestIT.java
+++ b/modules/data-streams/src/javaRestTest/java/org/elasticsearch/datastreams/logsdb/qa/StandardVersusLogsIndexModeRandomDataChallengeRestIT.java
@@ -146,6 +146,7 @@ public void contenderMappings(XContentBuilder builder) throws IOException {
 
     @Override
     public void contenderSettings(Settings.Builder builder) {
+        super.contenderSettings(builder);
         if (keepArraySource) {
             builder.put(Mapper.SYNTHETIC_SOURCE_KEEP_INDEX_SETTING.getKey(), "arrays");
         }