diff --git a/src/you_get/extractors/acfun.py b/src/you_get/extractors/acfun.py
index e4f0b0d7..87ead98e 100644
--- a/src/you_get/extractors/acfun.py
+++ b/src/you_get/extractors/acfun.py
@@ -105,7 +105,7 @@ def acfun_download_by_vid(vid, title, output_dir='.', merge=True, info_only=Fals
             pass
 
 def acfun_download(url, output_dir='.', merge=True, info_only=False, **kwargs):
-    assert re.match(r'http://[^\.]+.acfun.[^\.]+/\D/\D\D(\d+)', url)
+    assert re.match(r'http://[^\.]*\.*acfun\.[^\.]+/\D/\D\D(\d+)', url)
     html = get_content(url)
 
     title = r1(r'data-title="([^"]+)"', html)