diff --git a/openup b/openup
index 4d5b039..63a357a 100755
--- a/openup
+++ b/openup
@@ -27,9 +27,13 @@ PKG_CERT_URL='https://stable.mtier.org/mtier.cert'
 PKG_CERT_REGEX='M:Tier Ltd. OpenBSD Stable Updates'
 ### end of user defined variables
 
-# do not change this!!!
+
+# DO NOT MODIFY ANYTHING BELOW THIS LINE!!!
+
 OPENUP_VERSION=1
 OPENUP_MINREL=53
+MEESA=$(readlink -f $0)
+TMPDIR="${TMPDIR:=/tmp}"
 
 error() {
 	echo -n "*** ERROR: $@"
@@ -60,7 +64,7 @@ get_cert() {
 	fi
 
 	echo "===> Downloading certificate"
-	_CERT=$(mktemp -p ${TMPDIR:=/tmp} pkg_cert.XXXXXXXXXX) || exit 1
+	_CERT=$(mktemp -p ${TMPDIR} pkg_cert.XXXXXXXXXX) || exit 1
 	_CMD="ftp -Vo ${_CERT} ${PKG_CERT_URL}"
 	if [ -z "${DRYRUN}" ]; then
 		${_CMD}
@@ -90,7 +94,7 @@ update_self() {
 	local _CMD _F _N
 
 	echo "===> Checking for openup(8) update"
-	_F=$(mktemp -p ${TMPDIR:=/tmp} pkg_cert.XXXXXXXXXX) || exit 1
+	_F=$(mktemp -p ${TMPDIR} pkg_cert.XXXXXXXXXX) || exit 1
 	_CMD="ftp -Vo ${_F} ${OPENUP_URL}"
 	if [ -z "${DRYRUN}" ]; then
 		${_CMD}
@@ -151,8 +155,6 @@ if [ "$(id -u)" -ne 0 ]; then
 	usage
 fi
 
-MEESA=$(readlink -f $0)
-
 # magic taken from fw_update(1)
 set -- $(sysctl -n kern.version | sed 's/^OpenBSD \([0-9]\.[0-9]\)\([^ ]*\).*/\1 \2/;q')
 version=$1