diff --git a/boot.c b/boot.c
index 17e3054..817c623 100644
--- a/boot.c
+++ b/boot.c
@@ -1,6 +1,6 @@
 #include <stdbool.h>
 
-#define BOARD (Cell*)0x7F00
+#define BOARD ((Cell*)0x7F00)
 
 typedef enum : char {
 	NONE  = ' ',