diff --git a/tools/check_op_desc.py b/tools/check_op_desc.py
index d92866d3d3650128f5e1235bc06be1300c993100..1873fde0c432db386af8122dba317f2bb6652da6 100644
--- a/tools/check_op_desc.py
+++ b/tools/check_op_desc.py
@@ -65,7 +65,7 @@ def diff_vars(origin_vars, new_vars):
         var_deleted_error_massage.append(var_name)
 
     for var_name in vars_name_only_in_new:
-        if not new_vars.get(var_name).get(DUPLICABLE):
+        if not new_vars.get(var_name).get(DISPENSABLE):
             error, var_error = True, True
             var_added_error_massage.append(var_name)