From b47a999dee9ee7a0d2e7b0c4d1cf25282abfa71a Mon Sep 17 00:00:00 2001
From: David Phillips <david@sighup.nz>
Date: Sun, 10 Mar 2019 21:22:23 +1300
Subject: Clean-up

---
 display.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'display.h')

diff --git a/display.h b/display.h
index b3b5a3d..e7cecc2 100644
--- a/display.h
+++ b/display.h
@@ -1 +1,6 @@
+#ifndef SUDOKU_DISPLAY_H
+#define SUDOKU_DISPLAY_H
+
 void display(struct cell board[9][9]);
+
+#endif /* SUDOKU_DISPLAY_H */
-- 
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