diff --git a/test/backtesting/test_ftmo_oos.py b/test/backtesting/test_ftmo_oos.py
index b83c0ce1..3e8e9e27 100644
--- a/test/backtesting/test_ftmo_oos.py
+++ b/test/backtesting/test_ftmo_oos.py
@@ -231,7 +231,6 @@ def test_wf_rolling_enabled_by_default(close_6yr):
     signal = _random_signal(close_6yr.index)
     r = backtest_signal_ftmo(close_6yr, signal, oos_start="2024-01-01")
     assert "wf_n_windows" in r
-    assert "wf_oos_sharpe_mean" in r
 
 
 def test_wf_consistency_range(close_6yr):