diff --git a/main.py b/main.py
index baca7503f..01ed79f6e 100644
--- a/main.py
+++ b/main.py
@@ -85,7 +85,10 @@ def parse_list_file(link, output_directory):
     result_rules = {"version": 1, "rules": []}
 
     for pattern, addresses in df.groupby('pattern')['address'].apply(list).to_dict().items():
-        rule_entry = {pattern: [address.strip() for address in addresses]}
+        if pattern == 'domain_suffix':
+            rule_entry = {pattern: ['.' + address.strip() for address in addresses]}
+        else:
+            rule_entry = {pattern: [address.strip() for address in addresses]}
         result_rules["rules"].append(rule_entry)
 
     # 使用 output_directory 拼接完整路径