diff --git a/flashchips.c b/flashchips.c
index 35e9d1b..b97baf3 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -3383,6 +3383,7 @@
 		.model_id	= MX_25L512,
 		.total_size	= 64,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3418,6 +3419,7 @@
 		.model_id	= MX_25L1005,
 		.total_size	= 128,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3450,6 +3452,7 @@
 		.model_id	= MX_25L2005,
 		.total_size	= 256,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3485,6 +3488,7 @@
 		.model_id	= MX_25L4005,
 		.total_size	= 512,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_OK_PRW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3520,6 +3524,7 @@
 		.model_id	= MX_25L8005,
 		.total_size	= 1024,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3555,6 +3560,7 @@
 		.model_id	= MX_25L1605,
 		.total_size	= 2048,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_OK_PRW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3590,6 +3596,7 @@
 		.model_id	= MX_25L1635D,
 		.total_size	= 2048,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3622,6 +3629,7 @@
 		.model_id	= MX_25L3205,
 		.total_size	= 4096,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_OK_PRW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3654,6 +3662,7 @@
 		.model_id	= MX_25L3235D,
 		.total_size	= 4096,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3686,6 +3695,7 @@
 		.model_id	= MX_25L6405,
 		.total_size	= 8192,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_OK_PROBE,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -3718,6 +3728,7 @@
 		.model_id	= MX_25L12805,
 		.total_size	= 16384,
 		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
 		.tested		= TEST_UNTESTED,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,