diff --git a/board/src/position/pieces.rs b/board/src/position/pieces.rs
index aeb67f9..d5965d5 100644
--- a/board/src/position/pieces.rs
+++ b/board/src/position/pieces.rs
@@ -45,7 +45,7 @@ impl<'a> Iterator for Pieces<'a> {
         while let Some(shape) = self.shape_iterator.next() {
             let piece = Piece::new(self.color, shape);
 
-            let bitboard = self.position.bitboard_for_piece(&piece);
+            let bitboard = self.position.bitboard_for_piece(piece);
             if bitboard.is_empty() {
                 println!("No {:?} pieces; looping", &piece);
                 continue;
diff --git a/board/src/position/position.rs b/board/src/position/position.rs
index 5d043e9..8181ff1 100644
--- a/board/src/position/position.rs
+++ b/board/src/position/position.rs
@@ -90,7 +90,7 @@ impl Position {
         Ok(())
     }
 
-    pub(super) fn bitboard_for_piece(&self, piece: &Piece) -> &BitBoard {
+    pub(super) fn bitboard_for_piece(&self, piece: Piece) -> &BitBoard {
         &self.pieces_per_type[piece.color as usize][piece.shape as usize]
     }
 
@@ -102,7 +102,7 @@ impl Position {
         for color in Color::iter() {
             for shape in Shape::iter() {
                 let piece = Piece::new(color, shape);
-                let bb = self.bitboard_for_piece(&piece);
+                let bb = self.bitboard_for_piece(piece);
                 if bb.has_piece_at(&sq) {
                     return Some(PlacedPiece::new(piece, sq));
                 }