diff --git a/minuitwrp/graphics.c b/minuitwrp/graphics.c
index 3576392..dc79db8 100644
--- a/minuitwrp/graphics.c
+++ b/minuitwrp/graphics.c
@@ -51,6 +51,8 @@
 #define PIXEL_SIZE 2
 #endif
 
+#define NUM_BUFFERS 2
+
 // #define PRINT_SCREENINFO 1 // Enables printing of screen info to log
 
 typedef struct {
@@ -63,7 +65,7 @@
 static GRFont *gr_font = 0;
 static GGLContext *gr_context = 0;
 static GGLSurface gr_font_texture;
-static GGLSurface gr_framebuffer[2];
+static GGLSurface gr_framebuffer[NUM_BUFFERS];
 static GGLSurface gr_mem_surface;
 static unsigned gr_active_fb = 0;
 static unsigned double_buffering = 0;
@@ -238,7 +240,7 @@
 static void set_active_framebuffer(unsigned n)
 {
     if (n > 1  || !double_buffering) return;
-    vi.yres_virtual = vi.yres * 2;
+    vi.yres_virtual = vi.yres * NUM_BUFFERS;
     vi.yoffset = n * vi.yres;
 //    vi.bits_per_pixel = PIXEL_SIZE * 8;
     if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {