diff --git a/minui/graphics.c b/minui/graphics.c
index 06c5fdf..adbfc09 100644
--- a/minui/graphics.c
+++ b/minui/graphics.c
@@ -115,6 +115,7 @@ static void set_active_framebuffer(unsigned n)
     if (n > 1) return;
     vi.yres_virtual = vi.yres * 2;
     vi.yoffset = n * vi.yres;
+    vi.bits_per_pixel = 16;
     if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
         perror("active fb swap failed");
     }