diff --git a/check.py b/check.py
index 4b9349f..166b305 100755
--- a/check.py
+++ b/check.py
@@ -176,7 +176,7 @@ def check_conference_web_site(name: str, src_url: str, year: int) -> bool:
     live, msg, redirect_to_url = check_conference(name, src_url, year)
     url = src_url.format(year=year)
     if live:
-        if redirect_to_url == url:
+        if redirect_to_url and normalize_url(redirect_to_url) == normalize_url(url):
             body = f"{name}\n{url}\nWeb page title: {msg}"
         else:
             body = f"""{name}