diff --git a/src/position.cpp b/src/position.cpp
index 7377b2029..cfbb85e84 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -855,6 +855,7 @@ void Position::do_move(Move                      m,
             k ^= Zobrist::psq[promotion][to];
             st->materialKey ^= Zobrist::psq[promotion][8 + pieceCount[promotion] - 1]
                              ^ Zobrist::psq[pc][8 + pieceCount[pc]];
+            st->nonPawnKey[us] ^= Zobrist::psq[promotion][to];
 
             if (promotionType <= BISHOP)
                 st->minorPieceKey ^= Zobrist::psq[promotion][to];
diff --git a/src/search.cpp b/src/search.cpp
index 41bbcd6d3..86b69db57 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -89,7 +89,7 @@ int correction_value(const Worker& w, const Position& pos, const Stack* const ss
                     + (*(ss - 4)->continuationCorrectionHistory)[pos.piece_on(m.to_sq())][m.to_sq()]
                   : 8;
 
-    return 10347 * pcv + 8821 * micv + 11168 * (wnpcv + bnpcv) + 7841 * cntcv;
+    return 10347 * pcv + 8821 * micv + 11665 * (wnpcv + bnpcv) + 7841 * cntcv;
 }
 
 // Add correctionHistory value to raw staticEval and guarantee evaluation