diff --git a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/OwnerDetails.java b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/OwnerDetails.java
index 8485a587560..a815d6ba14d 100644
--- a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/OwnerDetails.java
+++ b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/OwnerDetails.java
@@ -68,7 +68,7 @@ public OwnerDetails(
   /** Displays the owner of an entity. */
   @Override
   public void handle() {
-    Optional<Owner> owner = null;
+    Optional<Owner> owner = Optional.empty();
     MetadataObject metadata = MetadataObjects.parse(entity, entityType);
 
     try {