diff --git a/com/zetcode/Board.java b/com/zetcode/Board.java
index 6c700ee..5dff344 100644
--- a/com/zetcode/Board.java
+++ b/com/zetcode/Board.java
@@ -55,7 +55,7 @@ private Tetrominoe shapeAt(int x, int y) {
         return board[(y * BOARD_WIDTH) + x];
     }
 
-    void start() {
+    private void start() {
 
         curPiece = new Shape();
         board = new Tetrominoe[BOARD_WIDTH * BOARD_HEIGHT];