diff --git a/chia/simulator/block_tools.py b/chia/simulator/block_tools.py
index fd3eef5691e5..a841c0970489 100644
--- a/chia/simulator/block_tools.py
+++ b/chia/simulator/block_tools.py
@@ -17,8 +17,9 @@
 from typing import Any, Callable, Optional
 
 import anyio
+from chia_puzzles_py.programs import CHIALISP_DESERIALISATION, ROM_BOOTSTRAP_GENERATOR
 from chia_rs import MEMPOOL_MODE, AugSchemeMPL, G1Element, G2Element, PrivateKey, solution_generator
-from chia_puzzles_py.programs import CHIALISP_DESERIALISATION, ROM_BOOTSRAP_GENERATOR
+
 from chia.consensus.block_creation import create_unfinished_block, unfinished_block_to_full_block
 from chia.consensus.block_record import BlockRecord
 from chia.consensus.blockchain_interface import BlockRecordsProtocol