1 files changed, 3 insertions, 1 deletions
diff --git a/src/screen.h b/src/screen.h
index 67d6184..d239c0d 100644
--- a/src/screen.h
+++ b/src/screen.h
@@ -1,3 +1,5 @@
+#pragma once
+
 #include "raylib.h"
 
 #define MODE_CHIP8 0 // Chip-8 64x32
@@ -13,6 +15,6 @@ typedef struct SCREEN_DATA {
 
 void ScreenInit(int width, int height);
 void ScreenClear();
-void ScreenSetPixel(int x, int y, char state);
+void ScreenSetPixel(int x, int y, unsigned char state);
 void ScreenUpdate();
 void ScreenClose();