diff --git a/boards/arm/samv7/same70-xplained/configs/mcuboot-loader/defconfig b/boards/arm/samv7/same70-xplained/configs/mcuboot-loader/defconfig
index 40cf453f869ac..afae0b32709cf 100644
--- a/boards/arm/samv7/same70-xplained/configs/mcuboot-loader/defconfig
+++ b/boards/arm/samv7/same70-xplained/configs/mcuboot-loader/defconfig
@@ -42,6 +42,7 @@ CONFIG_FAT_LFN=y
 CONFIG_FS_FAT=y
 CONFIG_FS_PROCFS=y
 CONFIG_INIT_ENTRYPOINT="mcuboot_loader_main"
+CONFIG_LTO_FULL=y
 CONFIG_MCUBOOT_BOOTLOADER=y
 CONFIG_MCUBOOT_ENABLE_LOGGING=y
 CONFIG_MMCSD_MULTIBLOCK_LIMIT=1