diff --git a/usr.sbin/ntp/scripts/mkver b/usr.sbin/ntp/scripts/mkver
index f7be7184126b..07c03bf86674 100755
--- a/usr.sbin/ntp/scripts/mkver
+++ b/usr.sbin/ntp/scripts/mkver
@@ -9,7 +9,7 @@ case "" in
  *)  ConfStr="$ConfStr RSAREF" ;;
 esac
 
-ConfStr="$ConfStr 4.0.98f `date`"
+ConfStr="$ConfStr 4.0.98f `LC_TIME=C date`"
 
 if [ ! -f .version ]; then
   echo 0 > .version