diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/OneWayReplicatorDeduplicationTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/OneWayReplicatorDeduplicationTest.java
index eadd0b0ad3c94..20b9f0e8ded5d 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/OneWayReplicatorDeduplicationTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/OneWayReplicatorDeduplicationTest.java
@@ -114,6 +114,7 @@ protected void setConfigDefaults(ServiceConfiguration config, String clusterName
                                      LocalBookkeeperEnsemble bookkeeperEnsemble, ZookeeperServerTest brokerConfigZk) {
         super.setConfigDefaults(config, clusterName, bookkeeperEnsemble, brokerConfigZk);
         // For check whether deduplication snapshot has done.
+        config.setBrokerDeduplicationSnapshotIntervalSeconds(1);
         config.setBrokerDeduplicationEntriesInterval(10);
         config.setReplicationStartAt("earliest");
         // To cover more cases, write more than one ledger.