diff --git a/vga.h b/vga.h
index e426fb9..62881f8 100644
--- a/vga.h
+++ b/vga.h
@@ -1,6 +1,7 @@
 #pragma once
 #include "types.h"
 
+// https://wiki.osdev.org/Text_UI
 #define BLACK   0x00
 #define BLUE    0x01
 #define GREEN   0x02
@@ -13,7 +14,7 @@
 
 #define VGA_ADDR   0xB8000
 #define VGA_WIDTH  80
-#define VGA_HEIGHT 15
+#define VGA_HEIGHT 25
 
 void clearScreen(uint bgColor);
 void printInt(int integer, uint color, uint bgColor, int startX, int startY);