diff --git a/scripts/config/Makefile b/scripts/config/Makefile
index 3de98082b5..60e1bbdcb4 100644
--- a/scripts/config/Makefile
+++ b/scripts/config/Makefile
@@ -16,6 +16,7 @@
 
 check_lxdialog = $(shell $(SHELL) $(CURDIR)/lxdialog/check-lxdialog.sh -$(1))
 export CFLAGS += -DKBUILD_NO_NLS -I. $(call check_lxdialog,ccflags)
+export CXXFLAGS += -DKBUILD_NO_NLS
 
 conf-objs	:= conf.o zconf.tab.o
 mconf-objs	:= mconf.o zconf.tab.o