diff --git a/src/Ceres.MCTS/Search/MCTSBatchParamsManager.cs b/src/Ceres.MCTS/Search/MCTSBatchParamsManager.cs
index c81e87af..0f96bbb5 100644
--- a/src/Ceres.MCTS/Search/MCTSBatchParamsManager.cs
+++ b/src/Ceres.MCTS/Search/MCTSBatchParamsManager.cs
@@ -112,7 +112,7 @@ public void UpdateVLossDynamicBoost(int numLeafsAttempted, float yieldThisBatch)
 }
 
 
-#if nOT
+#if NOT
           if (nodesNN.Count > 10)
           {
             MCTSNode node = nodesNN[^1];