diff --git a/boards/sim/sim/sim/configs/nsh/defconfig b/boards/sim/sim/sim/configs/nsh/defconfig
index 65e646da65b..78b7fbf97f0 100644
--- a/boards/sim/sim/sim/configs/nsh/defconfig
+++ b/boards/sim/sim/sim/configs/nsh/defconfig
@@ -30,6 +30,9 @@ CONFIG_FS_PROCFS=y
 CONFIG_FS_ROMFS=y
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LIBC_LOCALE=y
+CONFIG_LIBC_LOCALE_CATALOG=y
+CONFIG_LIBC_LOCALE_GETTEXT=y
 CONFIG_LIB_ENVPATH=y
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_ARCHROMFS=y