diff --git a/PFERD/ilias/authenticators.py b/PFERD/ilias/authenticators.py
index 4e058d8..7701092 100644
--- a/PFERD/ilias/authenticators.py
+++ b/PFERD/ilias/authenticators.py
@@ -10,6 +10,7 @@ import bs4
 import requests
 
 from ..authenticators import UserPassAuthenticator
+from ..utils import soupify
 
 LOGGER = logging.getLogger(__name__)
 
@@ -55,7 +56,7 @@ class KitShibbolethAuthenticator(IliasAuthenticator):
             "target": "/shib_login.php",
             "home_organization_selection": "Mit KIT-Account anmelden",
         }
-        soup = bs4.BeautifulSoup(sess.post(url, data=data))
+        soup = soupify(sess.post(url, data=data))
 
         # Attempt to login using credentials, if necessary
         while not self._login_successful(soup):
@@ -73,7 +74,7 @@ class KitShibbolethAuthenticator(IliasAuthenticator):
                 "j_username": self._auth.username,
                 "j_password": self._auth.password,
             }
-            soup = bs4.BeautifulSoup(sess.post(url, data=data))
+            soup = soupify(sess.post(url, data=data))
 
             if not self._login_successful(soup):
                 print("Incorrect credentials.")
diff --git a/PFERD/utils.py b/PFERD/utils.py
index 8233ad1..b29f8cb 100644
--- a/PFERD/utils.py
+++ b/PFERD/utils.py
@@ -6,6 +6,7 @@ import logging
 from pathlib import Path, PurePath
 from typing import Optional, Tuple
 
+import bs4
 import requests
 from colorama import Fore, Style
 
@@ -30,6 +31,10 @@ def rename(path: PurePath, to_name: str) -> PurePath:
     return PurePath(*path.parts[:-1], to_name)
 
 
+def soupify(response: requests.Response) -> bs4.BeautifulSoup:
+    return bs4.BeautifulSoup(response.text, "html.parser")
+
+
 def stream_to_path(response: requests.Response, to_path: Path, chunk_size: int = 1024 ** 2) -> None:
     """
     Download a requests response content to a file by streaming it. This