diff --git a/src/main/c/GameTic_Tac_Toe/tictactoe.c b/src/main/c/GameTic_Tac_Toe/tictactoe.c
index be7be8a..c6b9659 100644
--- a/src/main/c/GameTic_Tac_Toe/tictactoe.c
+++ b/src/main/c/GameTic_Tac_Toe/tictactoe.c
@@ -1,6 +1,5 @@
 #include <stdio.h>
 
-const int BOARD_SIZE = 3;
 char board[3][3] = {{'1', '2', '3'},
                     {'4', '5', '6'},
                     {'7', '8', '9'}};
diff --git a/src/main/c/GameTic_Tac_Toe/tictactoe.h b/src/main/c/GameTic_Tac_Toe/tictactoe.h
index 67f34cb..759dbea 100644
--- a/src/main/c/GameTic_Tac_Toe/tictactoe.h
+++ b/src/main/c/GameTic_Tac_Toe/tictactoe.h
@@ -1,6 +1,8 @@
 #ifndef TICTACTOE_H
 #define TICTACTOE_H
 
+#define BOARD_SIZE 3
+
 int isValidMove(int choice);
 char checkLine(char a, char b, char c);
 void start_tictactoe();