diff --git a/flashchips.c b/flashchips.c
index a82c373..b5b289a 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -3840,6 +3840,34 @@
 
 	{
 		.vendor		= "SST",
+		.name		= "SST25LF040A.RES",
+		.bustype	= CHIP_BUSTYPE_SPI,
+		.manufacture_id	= SST_ID,
+		.model_id	= SST_25VF040_REMS,
+		.total_size	= 512,
+		.page_size	= 256,
+		.tested		= TEST_OK_PROBE,
+		.probe		= probe_spi_res2,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 128} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 16} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			},
+		},
+		.write		= spi_chip_write_1,
+		.read		= spi_chip_read,
+	},
+
+	{
+		.vendor		= "SST",
 		.name		= "SST25VF040B.REMS",
 		.bustype	= CHIP_BUSTYPE_SPI,
 		.manufacture_id	= SST_ID,
diff --git a/flashchips.h b/flashchips.h
index 9b42235..a04edef 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -388,7 +388,7 @@
 #define SST_25VF512A_REMS	0x48	/* REMS or RES opcode */
 #define SST_25VF010_REMS	0x49	/* REMS or RES opcode */
 #define SST_25VF020_REMS	0x43	/* REMS or RES opcode */
-#define SST_25VF040_REMS	0x44	/* REMS or RES opcode */
+#define SST_25VF040_REMS	0x44	/* REMS or RES opcode, same as SST25LF040A */
 #define SST_25VF040B		0x258D
 #define SST_25VF040B_REMS	0x8D	/* REMS or RES opcode */
 #define SST_25VF080_REMS	0x80	/* REMS or RES opcode */