diff --git a/src/index.js b/src/index.js
index 575878b..949e4aa 100644
--- a/src/index.js
+++ b/src/index.js
@@ -62,7 +62,7 @@ function isKing(piece) {
 
 function imageFromPiece(piece) {
   if (piece) {
-    let image = piece.color === WHITE ? piece.type : piece.type + 6;
+    const image = piece.color === WHITE ? piece.type : piece.type + 6;
     return Images[image];
   }
   return null;
@@ -88,7 +88,6 @@ class Piece {
     this.color = color;
     this.type = type;
   }
-
 }
 
 class Board extends React.Component {
@@ -133,11 +132,12 @@ class Board extends React.Component {
       new Piece(BLACK, KNIGHT),
       new Piece(BLACK, ROOK)
     ];
-    let squares = whiteRow;
-    squares = squares.concat(Array(8).fill(new Piece(WHITE, PAWN)));
-    squares = squares.concat(Array(32).fill(null));
-    squares = squares.concat(Array(8).fill(new Piece(BLACK, PAWN)));
-    squares = squares.concat(blackRow);
+    let squares = whiteRow.concat(
+      Array(8).fill(new Piece(WHITE, PAWN)),
+      Array(32).fill(null),
+      Array(8).fill(new Piece(BLACK, PAWN)),
+      blackRow);
+
     return squares;
   }