diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
index ed7cd70c6411c..e0f168eb8d842 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
@@ -699,7 +699,11 @@ private CompletableFuture<Void> internalUpdateNonPartitionedTopicProperties(Map<
 
                     @Override
                     public void updatePropertiesComplete(Map<String, String> properties, Object ctx) {
+                        if (managedLedger.getConfig().getProperties() == null) {
+                            managedLedger.getConfig().setProperties(new HashMap<>());
+                        }
                         managedLedger.getConfig().getProperties().putAll(properties);
+
                         future.complete(null);
                     }