diff --git a/configs/smartweb_defconfig b/configs/smartweb_defconfig
index 4cbdab0b37..836e0c002d 100644
--- a/configs/smartweb_defconfig
+++ b/configs/smartweb_defconfig
@@ -24,6 +24,7 @@ CONFIG_SPL_SYS_MALLOC_F_LEN=0x400
 CONFIG_SPL=y
 CONFIG_ENV_OFFSET_REDUND=0x180000
 CONFIG_SYS_LOAD_ADDR=0x22000000
+CONFIG_LTO=y
 CONFIG_FIT=y
 CONFIG_NAND_BOOT=y
 CONFIG_BOOTDELAY=3