diff --git a/apps/authentication/signals_handlers.py b/apps/authentication/signals_handlers.py
index ca06a0433..8e353ddf6 100644
--- a/apps/authentication/signals_handlers.py
+++ b/apps/authentication/signals_handlers.py
@@ -1,6 +1,5 @@
 from importlib import import_module
 
-from django.contrib.auth import BACKEND_SESSION_KEY
 from django.conf import settings
 from django.contrib.auth import user_logged_in
 from django.core.cache import cache
@@ -25,17 +24,17 @@ def on_user_auth_login_success(sender, user, request, **kwargs):
 
 @receiver(openid_user_login_success)
 def on_oidc_user_login_success(sender, request, user, create=False, **kwargs):
-    request.session[BACKEND_SESSION_KEY] = 'OIDCAuthCodeBackend'
+    request.session['auth_backend'] = settings.AUTH_BACKEND_OIDC_CODE
     post_auth_success.send(sender, user=user, request=request)
 
 
 @receiver(openid_user_login_failed)
 def on_oidc_user_login_failed(sender, username, request, reason, **kwargs):
-    request.session[BACKEND_SESSION_KEY] = 'OIDCAuthCodeBackend'
+    request.session['auth_backend'] = settings.AUTH_BACKEND_OIDC_CODE
     post_auth_failed.send(sender, username=username, request=request, reason=reason)
 
 
 @receiver(cas_user_authenticated)
 def on_cas_user_login_success(sender, request, user, **kwargs):
-    request.session[BACKEND_SESSION_KEY] = 'CASBackend'
+    request.session['auth_backend'] = settings.AUTH_BACKEND_CAS
     post_auth_success.send(sender, user=user, request=request)
diff --git a/apps/users/views/profile/otp.py b/apps/users/views/profile/otp.py
index f0e938170..caed50532 100644
--- a/apps/users/views/profile/otp.py
+++ b/apps/users/views/profile/otp.py
@@ -51,9 +51,6 @@ class UserOtpEnableInstallAppView(TemplateView):
         return super().get_context_data(**kwargs)
 
 
-
-
-
 class UserOtpEnableBindView(AuthMixin, TemplateView, FormView):
     template_name = 'users/user_otp_enable_bind.html'
     form_class = forms.UserCheckOtpCodeForm