diff --git a/src/sql/engine/basic/ob_hash_partitioning_infrastructure_op.h b/src/sql/engine/basic/ob_hash_partitioning_infrastructure_op.h
index 835c8af55..944529254 100644
--- a/src/sql/engine/basic/ob_hash_partitioning_infrastructure_op.h
+++ b/src/sql/engine/basic/ob_hash_partitioning_infrastructure_op.h
@@ -84,6 +84,7 @@ public:
         hash_funcs_(nullptr),
         sort_collations_(nullptr),
         cmp_funcs_(nullptr),
+        eval_ctx_(nullptr),
         sql_mem_processor_(nullptr)
   {}
   ~ObHashPartitionExtendHashTable()