diff --git a/src/storage/tablet/ob_tablet_meta.cpp b/src/storage/tablet/ob_tablet_meta.cpp
index 489f4e872b..3521a0ae12 100644
--- a/src/storage/tablet/ob_tablet_meta.cpp
+++ b/src/storage/tablet/ob_tablet_meta.cpp
@@ -1143,6 +1143,7 @@ void ObMigrationTabletParam::reset()
   ddl_execution_id_ = -1;
   ddl_cluster_version_ = 0;
   max_serialized_medium_scn_ = 0;
+  allocator_.reset();
 }
 
 int ObMigrationTabletParam::assign(const ObMigrationTabletParam &param)
diff --git a/src/storage/tablet/ob_tablet_meta.h b/src/storage/tablet/ob_tablet_meta.h
index e2ed2bbc2f..2886f76f4c 100644
--- a/src/storage/tablet/ob_tablet_meta.h
+++ b/src/storage/tablet/ob_tablet_meta.h
@@ -197,7 +197,7 @@ struct ObMigrationTabletParam final
 {
 public:
   ObMigrationTabletParam();
-  ~ObMigrationTabletParam() = default;
+  ~ObMigrationTabletParam() { reset(); }
   ObMigrationTabletParam(const ObMigrationTabletParam &) = delete;
   ObMigrationTabletParam &operator=(const ObMigrationTabletParam &) = delete;
 public: