diff --git a/tests/blockchain/test_blockchain.py b/tests/blockchain/test_blockchain.py
index ef3edac76deb..59df006f1656 100644
--- a/tests/blockchain/test_blockchain.py
+++ b/tests/blockchain/test_blockchain.py
@@ -5,6 +5,7 @@ import multiprocessing
 import time
 from dataclasses import replace
 from secrets import token_bytes
+from typing import Optional
 
 import pytest
 from blspy import AugSchemeMPL, G2Element
@@ -1813,7 +1814,10 @@ class TestBodyValidation:
         assert err == Err.INVALID_REWARD_COINS
 
     @pytest.mark.asyncio
-    async def test_initial_freeze(self, empty_blockchain):
+    # each block is 10 seconds, we pull 3 blocks and the test freeze time is
+    # 1000
+    @pytest.mark.parametrize("genesis_time,expected_error", [(970, Err.INITIAL_TRANSACTION_FREEZE), (971, None)])
+    async def test_initial_freeze(self, empty_blockchain, genesis_time: int, expected_error: Optional[Err]):
         # 6
         b = empty_blockchain
         blocks = bt.get_consecutive_blocks(
@@ -1821,23 +1825,25 @@ class TestBodyValidation:
             guarantee_transaction_block=True,
             pool_reward_puzzle_hash=bt.pool_ph,
             farmer_reward_puzzle_hash=bt.pool_ph,
-            genesis_timestamp=0,
+            genesis_timestamp=uint64(genesis_time),
+            time_per_block=10,
         )
         assert (await b.receive_block(blocks[0]))[0] == ReceiveBlockResult.NEW_PEAK
         assert (await b.receive_block(blocks[1]))[0] == ReceiveBlockResult.NEW_PEAK
         assert (await b.receive_block(blocks[2]))[0] == ReceiveBlockResult.NEW_PEAK
         wt: WalletTool = bt.get_pool_wallet_tool()
         tx: SpendBundle = wt.generate_signed_transaction(
-            10, wt.get_new_puzzlehash(), list(blocks[2].get_included_reward_coins())[0]
+            uint64(10), wt.get_new_puzzlehash(), list(blocks[2].get_included_reward_coins())[0]
         )
         blocks = bt.get_consecutive_blocks(
             1,
             block_list_input=blocks,
             guarantee_transaction_block=True,
             transaction_data=tx,
+            time_per_block=10,
         )
         err = (await b.receive_block(blocks[-1]))[1]
-        assert err == Err.INITIAL_TRANSACTION_FREEZE
+        assert err == expected_error
 
     @pytest.mark.asyncio
     async def test_invalid_transactions_generator_hash(self, empty_blockchain):