diff --git a/README.md b/README.md
index 7368eda..e4032b2 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Currently there are(same with [setup-zig](https://github.com/mlugg/setup-zig/blo
 
 You can also configure where to download `index.json` with `ASDF_ZIG_INDEX_URL` env var, it's https://ziglang.org/download/index.json by default. Availables:
 
-- https://liujiacai.net/zigbuilds/index.json
+- https://fs.liujiacai.net/zigbuilds/index.json
 
 ## License
 
diff --git a/bin/install b/bin/install
index 49888da..889e647 100755
--- a/bin/install
+++ b/bin/install
@@ -36,6 +36,7 @@ download_and_check() {
   local output=$2
   local expected_shasum=$3
 
+  echo "Download from $download_url"
   curl --fail --progress-bar --location --create-dirs --output "$output" "$url"
 
   local actual_shasum
@@ -57,16 +58,14 @@ download_zig() {
   local start_index=$((RANDOM % mirror_length))
   # Loop through the mirrors
   for i in $(seq 0 $((mirror_length - 1))); do
-    current_index=$(( (start_index + i) % mirror_length ))
+    current_index=$(((start_index + i) % mirror_length))
     local current_mirror=${mirrors[$current_index]}
 
     local current_url="${current_mirror}/${filename}?source=zigcc-asdf-zig"
-    echo "Download from mirror $current_url"
     download_and_check "${current_url}" "$source_path" "$expected_shasum" && return 0
   done
 
-  echo "Download $download_url"
-  if ! download_and_check "$download_url" "$source_path" "$expected_shasum";then
+  if ! download_and_check "$download_url" "$source_path" "$expected_shasum"; then
     fail "Checksum not same, expected: ${expected_shasum}, actual: ${actual_shasum}, file: ${source_path}"
   fi
 }