diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/lookup/TopicLookupBase.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/lookup/TopicLookupBase.java
index d0e913356b612..e89ae6bc99d62 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/lookup/TopicLookupBase.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/lookup/TopicLookupBase.java
@@ -327,6 +327,10 @@ private static void printWarnLogIfLookupResUnexpected(TopicName topic, LookupDat
         if (!pulsar.getBrokerService().isSystemTopic(topic)) {
             return;
         }
+        if (SystemTopicNames.TRANSACTION_COORDINATOR_ASSIGN.getPartitionedTopicName()
+                .equals(topic.getPartitionedTopicName())) {
+            return;
+        }
         boolean tlsEnabled = pulsar.getConfig().isBrokerClientTlsEnabled();
         if (!tlsEnabled && StringUtils.isBlank(lookupData.getBrokerUrl())) {
             log.warn("[{}] Unexpected lookup result: brokerUrl is required when TLS isn't enabled. options: {},"