diff --git a/board/src/piece.rs b/board/src/piece.rs
index 0ffb9de..36408ef 100644
--- a/board/src/piece.rs
+++ b/board/src/piece.rs
@@ -47,7 +47,7 @@ impl Shape {
 
 #[derive(Debug, Eq, PartialEq)]
 pub enum PiecePlacementError {
-    PieceExistsOnSquare,
+    ExistsOnSquare,
 }
 
 #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
diff --git a/board/src/position.rs b/board/src/position.rs
index a532d53..f2c5e7e 100644
--- a/board/src/position.rs
+++ b/board/src/position.rs
@@ -76,7 +76,7 @@ impl Position {
         let bitboard = self.bitboard_for_piece_mut(piece);
 
         if bitboard.has_piece_at(&square) {
-            return Err(PiecePlacementError::PieceExistsOnSquare);
+            return Err(PiecePlacementError::ExistsOnSquare);
         }
 
         bitboard.place_piece_at(&square);