diff --git a/boards/arm64/qemu/qemu-armv8a/configs/sw_tags/defconfig b/boards/arm64/qemu/qemu-armv8a/configs/sw_tags/defconfig
index 0aac2e6f603..a8c88ff0c1e 100644
--- a/boards/arm64/qemu/qemu-armv8a/configs/sw_tags/defconfig
+++ b/boards/arm64/qemu/qemu-armv8a/configs/sw_tags/defconfig
@@ -40,6 +40,7 @@ CONFIG_IDLETHREAD_STACKSIZE=8192
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_INTELHEX_BINARY=y
 CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LTO_FULL=y
 CONFIG_MM_KASAN=y
 CONFIG_MM_KASAN_SW_TAGS=y
 CONFIG_NSH_ARCHINIT=y