diff --git a/radicale/tests/test_web.py b/radicale/tests/test_web.py
index 88bf2bcd..ecfec9a9 100644
--- a/radicale/tests/test_web.py
+++ b/radicale/tests/test_web.py
@@ -26,9 +26,8 @@ class TestBaseWebRequests(BaseTest):
     """Test web plugin."""
 
     def test_internal(self) -> None:
-        _, headers, answer = self.request("GET", "/.web", check=302)
-        assert headers.get("Location") == ".web/"
-        assert answer == "Redirected to .web/"
+        _, headers, _ = self.request("GET", "/.web", check=302)
+        assert headers.get("Location") == "/.web/"
         _, answer = self.get("/.web/")
         assert answer
         self.post("/.web", check=405)
diff --git a/radicale/web/internal.py b/radicale/web/internal.py
index 4ee62c81..d8f078b0 100644
--- a/radicale/web/internal.py
+++ b/radicale/web/internal.py
@@ -27,7 +27,6 @@ Features:
 
 
 import os
-import posixpath
 import time
 from http import client
 from typing import Mapping
@@ -75,7 +74,7 @@ class Web(web.BaseWeb):
                          path, e, exc_info=True)
             return httputils.NOT_FOUND
         if os.path.isdir(filesystem_path) and not path.endswith("/"):
-            return httputils.redirect(posixpath.basename(path) + "/")
+            return httputils.redirect(base_prefix + path + "/")
         if os.path.isdir(filesystem_path):
             filesystem_path = os.path.join(filesystem_path, "index.html")
         if not os.path.isfile(filesystem_path):