diff --git a/util/sis/sst28sf040.c b/util/sis/sst28sf040.c
index 235e7d79d6..e0e5ea3202 100644
--- a/util/sis/sst28sf040.c
+++ b/util/sis/sst28sf040.c
@@ -105,7 +105,9 @@ int probe_28sf040 (struct flashchip * flash)
 	usleep(10);
 
 	*bios = READ_ID;
+	usleep(10);
 	id1 = *(unsigned char *) bios;
+	usleep(10);
 	id2 = *(unsigned char *) (bios + 0x01);
 
 	*bios = RESET;