diff --git a/configs/rcar3_salvator-x_defconfig b/configs/rcar3_salvator-x_defconfig
index b6b63829fe..5df295980b 100644
--- a/configs/rcar3_salvator-x_defconfig
+++ b/configs/rcar3_salvator-x_defconfig
@@ -10,6 +10,7 @@ CONFIG_SPL_TEXT_BASE=0xe6338000
 CONFIG_RCAR_GEN3=y
 CONFIG_TARGET_SALVATOR_X=y
 CONFIG_SYS_LOAD_ADDR=0x58000000
+CONFIG_LTO=y
 CONFIG_REMAKE_ELF=y
 CONFIG_FIT=y
 CONFIG_SUPPORT_RAW_INITRD=y