diff --git a/main.rkt b/main.rkt
index 02d3142..e5e9b94 100644
--- a/main.rkt
+++ b/main.rkt
@@ -16,7 +16,7 @@
 ; grid is the grid
 ; player is the current player
 ; scores is a list of numbers for the score of each player.
-(struct GameState (grid player scores))
+(struct GameState (grid player scores) #:transparent)
 
 ; width and height of the playing grid.
 (define GRID-WIDTH 6)