diff --git a/src/movepick.cpp b/src/movepick.cpp
index 415d252f3..e4a610afe 100644
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -171,7 +171,7 @@ ExtMove* MovePicker::score(MoveList<Type>& ml) {
 
             // penalty for moving to a square threatened by a lesser piece
             // or bonus for escaping an attack by a lesser piece.
-            int v = threatByLesser[pt] & to ? -19 : 20 * bool(threatByLesser[pt] & from);
+            int v = 20 * (bool(threatByLesser[pt] & from) - bool(threatByLesser[pt] & to));
             m.value += PieceValue[pt] * v;