diff --git a/tests/prague/eip2935_historical_block_hashes_from_state/test_block_hashes.py b/tests/prague/eip2935_historical_block_hashes_from_state/test_block_hashes.py
index 7a4bcd14fc6..ff590d4c3cc 100644
--- a/tests/prague/eip2935_historical_block_hashes_from_state/test_block_hashes.py
+++ b/tests/prague/eip2935_historical_block_hashes_from_state/test_block_hashes.py
@@ -240,7 +240,7 @@ def test_block_hashes_call_opcodes(
     )
 
     code = (
-        Op.MSTORE(0, 1)
+        Op.MSTORE(0, Op.SUB(Op.NUMBER(), 1))
         + Op.SSTORE(
             return_code_slot,
             call_opcode(