diff --git a/python_arborist.py b/python_arborist.py
index e4c0f95c82c70b1d27087ba4b7dc13e3316ca283..b73cbdd9ece08fdad31e15db9c15b0d3ea073fd3 100644
--- a/python_arborist.py
+++ b/python_arborist.py
@@ -11,8 +11,8 @@ from typing import List, Dict, Tuple, Optional
 
 from combinatorial_LR_parser import MasterStateMachine
 
-from cfg_utils import *
 
+import CFGBoltzmann
 
 class Cirno(Elaboratable):
     def __init__(self):