diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h
index 8fdfacf268..603c1cebdb 100644
--- a/include/hw/loongarch/virt.h
+++ b/include/hw/loongarch/virt.h
@@ -20,7 +20,7 @@
 #define VIRT_FWCFG_BASE         0x1e020000UL
 #define VIRT_BIOS_BASE          0x1c000000UL
 #define VIRT_BIOS_SIZE          (16 * MiB)
-#define VIRT_FLASH_SECTOR_SIZE  (128 * KiB)
+#define VIRT_FLASH_SECTOR_SIZE  (256 * KiB)
 #define VIRT_FLASH0_BASE        VIRT_BIOS_BASE
 #define VIRT_FLASH0_SIZE        VIRT_BIOS_SIZE
 #define VIRT_FLASH1_BASE        0x1d000000UL