diff --git a/py/在线V4源优选.py b/py/在线V4源优选.py
index 75a870a..01956f9 100644
--- a/py/在线V4源优选.py
+++ b/py/在线V4源优选.py
@@ -34,7 +34,7 @@ def filter_lines(input_file, output_file):
         if ',' in line:  #行中包含m3u的同时还要包含hls或者tsfile
           if 'epg' not in line and 'mitv' not in line and 'udp' not in line and 'rtp' not in line  and '[' not in line \
             and 'P2p' not in line and 'p2p' not in line and 'p3p' not in line and 'P2P' not in line and 'P3p' not in line and 'P3P' not in line: 排除组播地址
-            filtered_lines.append(line)
+              filtered_lines.append(line)
     with open(output_file, 'w', encoding='utf-8') as output_file:
         output_file.writelines(filtered_lines)
 filter_lines("源.txt", "源.txt")