diff --git a/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig b/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
index 3d1dbf6f20..8ab639a254 100644
--- a/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
+++ b/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
@@ -19,6 +19,7 @@ CONFIG_BOARD_LOOPSPERMSEC=4531
 CONFIG_DISABLE_ENVIRON=y
 CONFIG_DISABLE_MQUEUE_SYSV=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LTO_FULL=y
 CONFIG_NET=y
 CONFIG_NETDB_DNSCLIENT=y
 CONFIG_NETDB_DNSCLIENT_ENTRIES=4