diff --git a/cpp/src/pieces/pawn.cpp b/cpp/src/pieces/pawn.cpp
index 55c3183..73059ec 100644
--- a/cpp/src/pieces/pawn.cpp
+++ b/cpp/src/pieces/pawn.cpp
@@ -32,14 +32,15 @@ std::vector<Move> pawn_moves(const Board& b, const Coords xy) {
     // -- Capture en passant
     if (b.en_passant_target != -1) {
         Coords c = Coords::from_index(b.en_passant_target);
-        int dy = my_colour == Colour::White ? -1 : 1;
-        if (c.y == xy.y + dy && (c.x == xy.x - 1 || c.x == xy.x + 1))
+        int dy = my_colour == Colour::White ? 1 : -1;
+        if (c.y == xy.y + dy && (c.x == xy.x - 1 || c.x == xy.x + 1)) {
             ret.push_back(Move{
                 xy.to_index(),
                 c.to_index(),
                 .is_capturing = true,
                 .en_passant = true
             });
+        }
     }
 
     // -- Normal move + promotion