diff --git a/scripts/refresh-compat.sh b/scripts/refresh-compat.sh
index 5a47a3ff..326f97df 100755
--- a/scripts/refresh-compat.sh
+++ b/scripts/refresh-compat.sh
@@ -1,11 +1,16 @@
 #!/bin/bash
+set -euo pipefail
+
+if ! git diff --quiet || ! git diff --cached --quiet; then
+	echo "Working tree is not clean. Commit or stash changes before running refresh-compat.sh." >&2
+	exit 1
+fi
 
 git fetch origin main compat
 git checkout -B compat origin/compat
 patch_file="$(mktemp)"
+trap 'rm -f "$patch_file"' EXIT
 git diff origin/main -- . ':(exclude)**/go.mod' ':(exclude)**/go.sum' >"$patch_file"
-sed -i 's/sonic\./json\./g' "$patch_file"
-sed -i 's/"github.com\/bytedance\/sonic"/"encoding\/json"/g' "$patch_file"
 git checkout -B main origin/main
 git branch -D compat
 git checkout -b compat
@@ -14,6 +19,8 @@ mapfile -t changed_go_files < <(git diff --name-only -- '*.go')
 fmt_go_files=()
 for file in "${changed_go_files[@]}"; do
 	[ -f "$file" ] || continue
+	sed -i 's/sonic\./json\./g' "$file"
+	sed -i 's/"github.com\/bytedance\/sonic"/"encoding\/json"/g' "$file"
 	sed -E -i 's/\bsonic[[:space:]]+"encoding\/json"/json "encoding\/json"/g' "$file"
 	fmt_go_files+=("$file")
 done