diff --git a/scripts/build.sh b/scripts/build.sh
index 5d78fdb..d6e4a93 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -29,8 +29,7 @@ if [ "$HOST_ARCH" != "x86_64" ] && [ "$HOST_ARCH" != "aarch64" ]; then
 fi
 cd "$(dirname "$0")" || exit 1
 trap umount_clean EXIT
-PARENT_DIR="$(dirname "$PWD")"
-# export TMPDIR=$PARENT_DIR/WORK_DIR_
+# export TMPDIR=$(dirname "$PWD")/WORK_DIR_
 if [ "$TMPDIR" ] && [ ! -d "$TMPDIR" ]; then
     mkdir -p "$TMPDIR"
 fi
diff --git a/scripts/run.sh b/scripts/run.sh
index 212dbcc..8e0e8ee 100755
--- a/scripts/run.sh
+++ b/scripts/run.sh
@@ -21,8 +21,6 @@
 # DEBUG=--debug
 # CUSTOM_MAGISK=--magisk-custom
 
-DOWNLOAD_DIR=../download
-
 if [ ! "$BASH_VERSION" ]; then
     echo "Please do not use sh to run this script, just execute it directly" 1>&2
     exit 1