diff --git a/util/grub.d/00_header.in b/util/grub.d/00_header.in
index 93a9023..f6fac3a 100644
--- a/util/grub.d/00_header.in
+++ b/util/grub.d/00_header.in
@@ -193,7 +193,7 @@ EOF
 # Gettext variables and module
 if [ "x${LANG}" != "xC" ] &&  [ "x${LANG}" != "x" ]; then
   cat << EOF
-  set locale_dir=\$prefix/locale
+  set locale_dir=`make_system_path_relative_to_its_root "\$prefix/locale"`
   set lang=${grub_lang}
   insmod gettext
 EOF