diff --git a/tools/build/makeshorewall b/tools/build/makeshorewall
index 9e5094e24..ba6135bb6 100644
--- a/tools/build/makeshorewall
+++ b/tools/build/makeshorewall
@@ -208,7 +208,7 @@ esac
 VERSION=$1
 LOGFILE=$LOGDIR/shorewall_build_${VERSION}.log
 # location and options for GnuPG
-GPG="/usr/bin/gpg -ab --batch"
+GPG="/usr/bin/gpg -ab --batch --comment 'To verify this,you can download our public key on https://lists.shorewall.net/shorewall.gpg.key'"
 touch $LOGFILE
 progress_message "Build of Shorewall $VERSION on $(date)"