diff --git a/gnuviechadmin/gnuviechadmin/settings.py b/gnuviechadmin/gnuviechadmin/settings.py
index 60e1205..5ce4c57 100644
--- a/gnuviechadmin/gnuviechadmin/settings.py
+++ b/gnuviechadmin/gnuviechadmin/settings.py
@@ -233,6 +233,7 @@ LOCAL_APPS = (
     "help",
     "invoices",
     "contact_form",
+    "exit",
 )
 
 # See: https://docs.djangoproject.com/en/dev/ref/settings/#installed-apps
@@ -376,13 +377,17 @@ OSUSER_MINUID = env.int("GVA_MIN_OS_UID", default=10000)
 OSUSER_MINGID = env.int("GVA_MIN_OS_GID", default=10000)
 OSUSER_USERNAME_PREFIX = env.str("GVA_OSUSER_PREFIX", default="usr")
 OSUSER_HOME_BASEPATH = env.str("GVA_OSUSER_HOME_BASEPATH", default="/home")
-OSUSER_DEFAULT_SHELL = env.str("GVA_OSUSER_DEFAULT_SHELL", default="/usr/bin/rssh")
+OSUSER_DEFAULT_SHELL = env.str(
+    "GVA_OSUSER_DEFAULT_SHELL", default="/usr/bin/rssh"
+)
 OSUSER_SFTP_GROUP = "sftponly"
 OSUSER_SSH_GROUP = "sshusers"
 OSUSER_DEFAULT_GROUPS = [OSUSER_SFTP_GROUP]
 OSUSER_UPLOAD_SERVER = env.str("GVA_OSUSER_UPLOADSERVER", default="file")
 
-GVA_LINK_WEBMAIL = env.str("GVA_WEBMAIL_URL", default="https://webmail.example.org/")
+GVA_LINK_WEBMAIL = env.str(
+    "GVA_WEBMAIL_URL", default="https://webmail.example.org/"
+)
 GVA_LINK_PHPMYADMIN = env.str(
     "GVA_PHPMYADMIN_URL", default="https://phpmyadmin.example.org/"
 )
@@ -488,7 +493,9 @@ else:
     EMAIL_SUBJECT_PREFIX = "[%s] " % SITE_NAME
 
     # See: https://docs.djangoproject.com/en/dev/ref/settings/#default-from-email
-    DEFAULT_FROM_EMAIL = env.str("GVA_SITE_ADMINMAIL", default="admin@example.org")
+    DEFAULT_FROM_EMAIL = env.str(
+        "GVA_SITE_ADMINMAIL", default="admin@example.org"
+    )
 
     # See: https://docs.djangoproject.com/en/dev/ref/settings/#server-email
     SERVER_EMAIL = env.str("GVA_SITE_ADMINMAIL", default="admin@example.org")