diff --git a/src/ppu.c b/src/ppu.c
index bedf02d..dcf4e9c 100644
--- a/src/ppu.c
+++ b/src/ppu.c
@@ -209,6 +209,7 @@ ppu_init(void) {
 
     // Clear framebuffer.
     memset(framebuffer, 0xFF, len);
+    write(refresh_file, "1", 1);
 
     // Make sure we perform an initial screen drawing.
     reqdraw = 1;