diff --git a/pm49fl00x.c b/pm49fl00x.c
index fe8b974..e2ca7b6 100644
--- a/pm49fl00x.c
+++ b/pm49fl00x.c
@@ -35,7 +35,7 @@
 		if (block_size == 16384 && i % 2)
 			continue;
 
-		*(bios + (i * block_size) + 2) = bits;
+		writeb(bits, bios + (i * block_size) + 2);
 	}
 }