diff --git a/configs/ls2080ardb_SECURE_BOOT_defconfig b/configs/ls2080ardb_SECURE_BOOT_defconfig
index 429dfd7..b799f34 100644
--- a/configs/ls2080ardb_SECURE_BOOT_defconfig
+++ b/configs/ls2080ardb_SECURE_BOOT_defconfig
@@ -31,6 +31,7 @@
 CONFIG_MISC_INIT_R=y
 CONFIG_RESET_PHY_R=y
 CONFIG_SYS_MAXARGS=64
+CONFIG_SYS_PBSIZE=532
 CONFIG_CMD_IMLS=y
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_EEPROM=y