diff --git a/patch_v2/meow_watchdog/build_watchdog.sh b/patch_v2/meow_watchdog/build_watchdog.sh
index 3beacd5..8dd2e37 100755
--- a/patch_v2/meow_watchdog/build_watchdog.sh
+++ b/patch_v2/meow_watchdog/build_watchdog.sh
@@ -6,7 +6,7 @@
 #   ./build_watchdog.sh host     # 宿主编译 test_wd_fw 并跑宿主回归
 set -e
 cd "$(dirname "$0")"
-ROOT=../../..
+ROOT=../..
 CC="$ROOT/.tools/zig-mipsel-cc"
 
 if [ "$1" = "host" ]; then