diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherSingleActiveConsumer.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherSingleActiveConsumer.java
index b451a8ad5dc0d..7032a057e9046 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherSingleActiveConsumer.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherSingleActiveConsumer.java
@@ -350,7 +350,8 @@ void readMoreEntries(Consumer consumer) {
                 final Consumer activeConsumer = getActiveConsumer();
                 if (consumer != activeConsumer) {
                     log.info("[{}] cancel the readMoreEntries because consumer {} is no longer the active consumer {}",
-                            topic.getName(), consumer.consumerName(), activeConsumer.consumerName());
+                            topic.getName(), consumer.consumerName(),
+                            activeConsumer != null ? activeConsumer.consumerName() : null);
                     return;
                 }
                 if (havePendingRead) {