diff --git a/src/backend.js b/src/backend.js
index 719bd0f..28f72c8 100644
--- a/src/backend.js
+++ b/src/backend.js
@@ -1,4 +1,4 @@
-import { Piece } from './logic'
+const { Piece } = require('./logic')
 
 
 const BLACK = 0; const WHITE = 1;
diff --git a/src/logic.js b/src/logic.js
index cb52034..ee9637f 100644
--- a/src/logic.js
+++ b/src/logic.js
@@ -129,4 +129,4 @@ const textFromBoard = ({ state }) => {
   }).join('');
 }
 
-export { Piece, startingBoard, textFromBoard, PAWN, ROOK, KNIGHT, BISHOP, QUEEN, KING, EMPTY, BLACK, WHITE }
+module.exports = { Piece, startingBoard, textFromBoard, PAWN, ROOK, KNIGHT, BISHOP, QUEEN, KING, EMPTY, BLACK, WHITE }