diff --git a/exercises/practice/state-of-tic-tac-toe/state_of_tic_tac_toe.s b/exercises/practice/state-of-tic-tac-toe/state_of_tic_tac_toe.s
index 53c9e3a..e5220a4 100644
--- a/exercises/practice/state-of-tic-tac-toe/state_of_tic_tac_toe.s
+++ b/exercises/practice/state-of-tic-tac-toe/state_of_tic_tac_toe.s
@@ -1,3 +1,8 @@
+.equ ONGOING, 0
+.equ DRAW, 1
+.equ WIN, 2
+.equ INVALID, 3
+
 .text
 .globl gamestate