diff --git a/src/search.cpp b/src/search.cpp
index d79b452d9b4..e5aecd01f8a 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -82,13 +82,12 @@ constexpr int futility_move_count(bool improving, Depth depth) {
 Value to_corrected_static_eval(Value v, const Worker& w, const Position& pos) {
     const Color us    = pos.side_to_move();
     const auto  pcv   = w.pawnCorrectionHistory[us][pawn_structure_index<Correction>(pos)];
-    const auto  mcv   = w.materialCorrectionHistory[us][material_index(pos)];
     const auto  macv  = w.majorPieceCorrectionHistory[us][major_piece_index(pos)];
     const auto  micv  = w.minorPieceCorrectionHistory[us][minor_piece_index(pos)];
     const auto  wnpcv = w.nonPawnCorrectionHistory[WHITE][us][non_pawn_index<WHITE>(pos)];
     const auto  bnpcv = w.nonPawnCorrectionHistory[BLACK][us][non_pawn_index<BLACK>(pos)];
     const auto  cv =
-      (6245 * pcv + 3442 * mcv + 3471 * macv + 5958 * micv + 6566 * (wnpcv + bnpcv)) / 131072;
+      (6245 * pcv + 3471 * macv + 5958 * micv + 6666 * (wnpcv + bnpcv)) / 131072;
     v += cv;
     return std::clamp(v, VALUE_TB_LOSS_IN_MAX_PLY + 1, VALUE_TB_WIN_IN_MAX_PLY - 1);
 }
@@ -498,7 +497,6 @@ void Search::Worker::clear() {
     captureHistory.fill(-753);
     pawnHistory.fill(-1152);
     pawnCorrectionHistory.fill(0);
-    materialCorrectionHistory.fill(0);
     majorPieceCorrectionHistory.fill(0);
     minorPieceCorrectionHistory.fill(0);
     nonPawnCorrectionHistory[WHITE].fill(0);
@@ -1405,7 +1403,6 @@ Value Search::Worker::search(
                                 -CORRECTION_HISTORY_LIMIT / 4, CORRECTION_HISTORY_LIMIT / 4);
         thisThread->pawnCorrectionHistory[us][pawn_structure_index<Correction>(pos)]
           << bonus * 101 / 128;
-        thisThread->materialCorrectionHistory[us][material_index(pos)] << bonus * 99 / 128;
         thisThread->majorPieceCorrectionHistory[us][major_piece_index(pos)] << bonus * 157 / 128;
         thisThread->minorPieceCorrectionHistory[us][minor_piece_index(pos)] << bonus * 153 / 128;
         thisThread->nonPawnCorrectionHistory[WHITE][us][non_pawn_index<WHITE>(pos)]