diff --git a/abstract-machine/am/src/platform/nemu/ioe/gpu.c b/abstract-machine/am/src/platform/nemu/ioe/gpu.c
index 33d63b9..6d1df6b 100644
--- a/abstract-machine/am/src/platform/nemu/ioe/gpu.c
+++ b/abstract-machine/am/src/platform/nemu/ioe/gpu.c
@@ -12,7 +12,7 @@ void __am_gpu_init() {
   // int w = inw(VGACTL_ADDR + 2);  // TODO: get the correct width
   // int h = inw(VGACTL_ADDR);  // TODO: get the correct height
   uint32_t *fb = (uint32_t *)(uintptr_t)FB_ADDR;
-  for (i = 0; i < w * h; i ++) fb[i] = 0xFFFFFFFF;
+  for (i = 0; i < w * h; i ++) fb[i] = 0x00FFFFFF;
   outl(SYNC_ADDR, 1);
 }