diff --git a/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig b/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
index f24da36da84..eb4f22c8cb1 100644
--- a/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
+++ b/boards/arm/tiva/lm3s6432-s2e/configs/nsh/defconfig
@@ -5,6 +5,7 @@
 # You can then do "make savedefconfig" to generate a new defconfig file that includes your
 # modifications.
 #
+# CONFIG_LIBC_LONG_LONG is not set
 # CONFIG_NSH_DISABLE_IFCONFIG is not set
 # CONFIG_NSH_DISABLE_PS is not set
 CONFIG_ARCH="arm"