diff --git a/install_opendkim.sh b/install_opendkim.sh
index 4b67c67..9ca7062 100755
--- a/install_opendkim.sh
+++ b/install_opendkim.sh
@@ -726,6 +726,7 @@ while IFS='' read -r _line || [[ -n $_line ]] ; do
       _found=false
       if ! echo "$_line" | grep -i -q -E "^\s*-o\s+smtpd_milters=\s*local:/opendkim/opendkim.sock\s*$" ; then
          echo "   -o smtpd_milters=local:/opendkim/opendkim.sock" >> "$tmp_master_file"
+         echo "   -o milter_macro_daemon_name=ORIGINATING" >> "$tmp_master_file"
          _changed=true
          continue
       fi