diff --git a/aleksis/core/mixins.py b/aleksis/core/mixins.py
index f3edd31338ebf5fce1dd915aed3cdb373c71086a..109853a78bafae7f4d57d018a43446b1efcc792d 100644
--- a/aleksis/core/mixins.py
+++ b/aleksis/core/mixins.py
@@ -306,7 +306,7 @@ class ExtensibleForm(ModelForm, metaclass=_ExtensibleFormMetaclass):
     - apps to add layout nodes to the layout used by django-material
 
     :Add layout nodes:
-    
+
     .. code-block:: python
 
         from material import Fieldset
diff --git a/aleksis/core/preferences.py b/aleksis/core/preferences.py
index 2f079e295fe57b4cd680208bdc6513966621e199..b03cb4fb500e8e10cf1456607dc2ada9ab5e98e1 100644
--- a/aleksis/core/preferences.py
+++ b/aleksis/core/preferences.py
@@ -92,7 +92,7 @@ class Favicon(FilePreference):
 
 @site_preferences_registry.register
 class PWAIcon(FilePreference):
-    """PWA-Icon"""
+    """PWA-Icon of your AlekSIS instance."""
 
     section = theme
     field_class = ImageField
@@ -102,7 +102,7 @@ class PWAIcon(FilePreference):
 
 @site_preferences_registry.register
 class MailOutName(StringPreference):
-    """Mail out name"""
+    """Mail out name of your AlekSIS instance."""
 
     section = mail
     name = "name"
@@ -113,7 +113,7 @@ class MailOutName(StringPreference):
 
 @site_preferences_registry.register
 class MailOut(StringPreference):
-    """Mail out address"""
+    """Mail out address of your AlekSIS instance."""
 
     section = mail
     name = "address"
@@ -125,7 +125,7 @@ class MailOut(StringPreference):
 
 @site_preferences_registry.register
 class PrivacyURL(StringPreference):
-    """Link to privacy policy"""
+    """Link to privacy policy of your AlekSIS instance."""
 
     section = footer
     name = "privacy_url"
@@ -137,7 +137,7 @@ class PrivacyURL(StringPreference):
 
 @site_preferences_registry.register
 class ImprintURL(StringPreference):
-    """Link to imprint"""
+    """Link to imprint of your AlekSIS instance."""
 
     section = footer
     name = "imprint_url"
@@ -224,6 +224,8 @@ class SchoolNameOfficial(StringPreference):
 
 @site_preferences_registry.register
 class AuthenticationBackends(MultipleChoicePreference):
+    """Authentication backends of your AlekSIS instance."""
+
     section = auth
     name = "backends"
     default = None
@@ -236,6 +238,8 @@ class AuthenticationBackends(MultipleChoicePreference):
 
 @site_preferences_registry.register
 class AvailableLanguages(MultipleChoicePreference):
+    """Available languages  of your AlekSIS instance."""
+
     section = internationalisation
     name = "languages"
     default = [code[0] for code in settings.LANGUAGES]
diff --git a/aleksis/core/templatetags/html_helpers.py b/aleksis/core/templatetags/html_helpers.py
index 122893fa1862075f30dcf66e3913476706ccf0d1..02738b920c6a8170ed4bdaf7f2547257179f0a40 100644
--- a/aleksis/core/templatetags/html_helpers.py
+++ b/aleksis/core/templatetags/html_helpers.py
@@ -9,10 +9,10 @@ register = template.Library()
 def add_class_to_el(value: str, arg: str) -> str:
     """Add a CSS class to every occurence of an element type.
 
-    :Example: 
-    
+    :Example:
+
     .. code-block:: jinja2
-    
+
         {{ mymodel.myhtmlfield|add_class_to_el:"ul,browser-default" }}
     """
     el, cls = arg.split(",")
diff --git a/docs/admin/05_configuration_options.rst b/docs/admin/05_configuration_options.rst
index 22c9fd9c81999441489742f00d39c52a475ebe23..881e509df088faa0b020138155c8c2376b2bee8b 100644
--- a/docs/admin/05_configuration_options.rst
+++ b/docs/admin/05_configuration_options.rst
@@ -58,7 +58,7 @@ Example configuration file::
     # Users in group "admins" are superusers
     flags = { is_superuser = "cn=admins,ou=groups,dc=myschool,dc=edu" }
 
-    # Search index, optional 
+    # Search index, optional
     [default.search]
     backend = "whoosh"
     index = "/srv/www/aleksis/data/whoosh_index"