diff --git a/src/search.cpp b/src/search.cpp
index de2ab7a3e..d2afc480b 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -917,7 +917,7 @@ Value Search::Worker::search(
         assert(probCutBeta < VALUE_INFINITE && probCutBeta > beta);
 
         MovePicker mp(pos, ttData.move, probCutBeta - ss->staticEval, &captureHistory);
-        Depth      dynamicReduction = (ss->staticEval - beta) / 306;
+        Depth      dynamicReduction = std::max((ss->staticEval - beta) / 306, -1);
         Depth      probCutDepth     = std::max(depth - 5 - dynamicReduction, 0);
 
         while ((move = mp.next_move()) != Move::none())