diff --git a/src/search.cpp b/src/search.cpp
index b4b85ee76..c81012625 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -369,7 +369,7 @@ void Search::Worker::iterative_deepening() {
                 // otherwise exit the loop.
                 if (bestValue <= alpha)
                 {
-                    beta  = (3 * alpha + beta) / 4;
+                    beta  = alpha;
                     alpha = std::max(bestValue - delta, -VALUE_INFINITE);
 
                     failedHighCnt = 0;