diff --git a/flashchips.c b/flashchips.c
index 1bc531a..14c4861 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -1403,7 +1403,7 @@
 		.model_id	= SST_39VF512,
 		.total_size	= 64,
 		.page_size	= 4096,
-		.tested		= TEST_UNTESTED,
+		.tested		= TEST_OK_PREW,
 		.probe		= probe_jedec,
 		.erase		= erase_chip_jedec,
 		.write		= write_49f002,