diff --git a/system/boot/grub2/files/grub-mkconfig_lib.patch b/system/boot/grub2/files/grub-mkconfig_lib.patch
index 732e5072..87f89e69 100644
--- a/system/boot/grub2/files/grub-mkconfig_lib.patch
+++ b/system/boot/grub2/files/grub-mkconfig_lib.patch
@@ -5,7 +5,7 @@ diff -Nuar a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in
  # You should have received a copy of the GNU General Public License
  # along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  
-+LC_ALL=C
++export LC_ALL=C
 +
  prefix="@prefix@"
  exec_prefix="@exec_prefix@"