diff --git a/Board.hpp b/Board.hpp
index 36aadff..94d81d8 100644
--- a/Board.hpp
+++ b/Board.hpp
@@ -41,23 +41,23 @@ private:
     BitBoard mPieceBBs[BB_NUM] = {};
     PieceColor mTurn = PieceColor::White;
 
-    static inline void clearIndex(BitBoard &b, unsigned int i) {
+    static inline void clearIndex(BitBoard &b, unsigned i) {
         b &= ~(1ULL << i);
     }
 
-    static inline void setIndex(BitBoard &b, unsigned int i) {
+    static inline void setIndex(BitBoard &b, unsigned i) {
         b |= 1ULL << i;
     }
 
-    static inline BitBoard indexToBitBoard(unsigned int i) {
+    static inline BitBoard indexToBitBoard(unsigned i) {
         return (1ULL << i);
     }
 
-    static inline PieceColor indexToColor(unsigned int i) {
+    static inline PieceColor indexToColor(unsigned i) {
         return static_cast<PieceColor>(i % 2);
     }
 
-    static inline PieceType indexToType(unsigned int i) {
+    static inline PieceType indexToType(unsigned i) {
         return static_cast<PieceType>(i - (i % 2));
     }
 };