diff --git a/board/src/castle.rs b/board/src/castle.rs
index 5acdaaf..4ba9a4b 100644
--- a/board/src/castle.rs
+++ b/board/src/castle.rs
@@ -46,7 +46,7 @@ impl Board {
 
         let color = self.unwrap_color(color);
 
-        if !self.has_castling_right_unwrapped(color, wing.into()) {
+        if !self.has_castling_right_unwrapped(color, wing) {
             return Err(CastleEvaluationError::NoRights { color, wing });
         }