1 files changed, 6 insertions, 0 deletions
diff --git a/game.h b/game.h
index b016ede..d24d2d7 100644
--- a/game.h
+++ b/game.h
@@ -2,9 +2,15 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#ifndef GAME_H
+#define GAME_H
+
 typedef struct decoded_image {
   size_t width;
   size_t height;
   uint32_t *buf;
   size_t buf_size;
 } decoded_image;
+
+#endif // GAME_H
+