diff --git a/flashchips/winbond.c b/flashchips/winbond.c
index 48fdc94b2..ae80b13f8 100644
--- a/flashchips/winbond.c
+++ b/flashchips/winbond.c
@@ -264,7 +264,7 @@
 		.total_size	= 16384,
 		.page_size	= 256,
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI | FEATURE_WRSR2,
-		.tested		= TEST_OK_PREW,
+		.tested		= TEST_OK_PREWB,
 		.probe		= PROBE_SPI_RDID,
 		.probe_timing	= TIMING_ZERO,
 		.block_erasers	=