diff --git a/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/PulsarAuthorizationProvider.java b/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/PulsarAuthorizationProvider.java
index 12c289f567da6..26a4f6c0db0ab 100644
--- a/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/PulsarAuthorizationProvider.java
+++ b/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/PulsarAuthorizationProvider.java
@@ -290,6 +290,7 @@ public CompletableFuture<Void> grantPermissionAsync(NamespaceName namespaceName,
             validatePoliciesReadOnlyAccess();
         } catch (Exception e) {
             result.completeExceptionally(e);
+            return result;
         }
 
         ZooKeeper globalZk = configCache.getZooKeeper();