diff --git a/scripts/e2e-prepare.sh b/scripts/e2e-prepare.sh
index 9c9e98c..0e85563 100755
--- a/scripts/e2e-prepare.sh
+++ b/scripts/e2e-prepare.sh
@@ -5,8 +5,9 @@
 
 set -e
 
-DATA_DIR="$HOME/.sanguo_projects/sanguo_moziplus_v2/data"
-BACKUP_DIR="$HOME/.sanguo_projects/sanguo_moziplus_v2/.e2e-backup"
+TARGET_DIR="${MOZIPLUS_V2_DIR:-$HOME/.sanguo_projects/sanguo_moziplus_v2}"
+DATA_DIR="$TARGET_DIR/data"
+BACKUP_DIR="$TARGET_DIR/.e2e-backup"
 REGISTRY="$DATA_DIR/_registry.yaml"
 TIMESTAMP=$(date +%Y%m%d_%H%M%S)