diff --git a/src/observer/omt/ob_tenant.cpp b/src/observer/omt/ob_tenant.cpp
index f09f8f3d9b..578874d8b2 100644
--- a/src/observer/omt/ob_tenant.cpp
+++ b/src/observer/omt/ob_tenant.cpp
@@ -575,6 +575,7 @@ ObTenant::ObTenant(const int64_t id,
       stopped_(true),
       wait_mtl_finished_(false),
       req_queue_(),
+      multi_level_queue_(nullptr),
       recv_hp_rpc_cnt_(0),
       recv_np_rpc_cnt_(0),
       recv_lp_rpc_cnt_(0),