diff --git a/w39v040c.c b/w39v040c.c
index 722ae29..66ab115 100644
--- a/w39v040c.c
+++ b/w39v040c.c
@@ -80,8 +80,8 @@
 	printf("Programming page: ");
 	for (i = 0; i < total_size / page_size; i++) {
 		printf("%04d at address: 0x%08x", i, i * page_size);
-		write_sector_jedec(bios, buf + i * page_size,
-				   bios + i * page_size, page_size);
+		write_sector_jedec_common(flash, buf + i * page_size,
+				   bios + i * page_size, page_size, 0xffff);
 		printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
 	}
 	printf("\n");