diff --git a/src/search.cpp b/src/search.cpp
index ffeb5110..8db295f1 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1125,7 +1125,8 @@ moves_loop: // When in check, search starts here
               return singularBeta;
 
           // If the eval of ttMove is greater than beta we try also if there is another
-          // move that pushes it over beta, if so also produce a cutoff.
+          // move that pushes it over beta, if so the position also has probably multiple
+          // moves giving fail highs. We will then reduce the ttMove (negative extension).
           else if (ttValue >= beta)
           {
               ss->excludedMove = move;
@@ -1133,7 +1134,7 @@ moves_loop: // When in check, search starts here
               ss->excludedMove = MOVE_NONE;
 
               if (value >= beta)
-                  return beta;
+                  extension = -2;
           }
       }