diff --git a/tests-ng/install-to-temp.sh b/tests-ng/install-to-temp.sh
index f5fd692..831970a 100755
--- a/tests-ng/install-to-temp.sh
+++ b/tests-ng/install-to-temp.sh
@@ -87,13 +87,14 @@ echo 'test_y' > ${basedir}/dotfiles/y
 echo "00000000  01 02 03 04 05" | xxd -r - ${basedir}/dotfiles/z
 
 echo "[+] install"
-cd ${ddpath} | ${bin} install -f -c ${cfg} -p p1 --showdiff --verbose --temp > ${basedir}/log
+log="${basedir}/log"
+cd ${ddpath} | ${bin} install -f -c ${cfg} -p p1 --showdiff --verbose --temp > ${log}
 
 tmpfile=`cat ${basedir}/log | grep 'installed to tmp ' | sed 's/^.*to tmp "\(.*\)"./\1/'`
 echo "tmpfile: ${tmpfile}"
 clear_on_exit "${tmpfile}"
 
-cat $log | grep '^3 dotfile(s) installed.$'
+cat ${log} | grep '^3 dotfile(s) installed.$'
 [ "$?" != "0" ] && exit 1
 
 echo "OK"