diff --git a/conf/ynh_sso_ldap_backend.py b/conf/ynh_sso_ldap_backend.py
deleted file mode 100644
index baaea9b..0000000
--- a/conf/ynh_sso_ldap_backend.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from django_auth_ldap.backend import LDAPBackend
-from inventory.permissions import get_or_create_normal_user_group
-
-
-class Django-For-RunnersYunohostLdapBackend(LDAPBackend):
-    def get_or_build_user(self, username, ldap_user):
-        user, built = super().get_or_build_user(username, ldap_user)
-
-        if built:
-            user.is_staff = True
-            user.is_superuser = False
-            user.save()
-
-            django-for-runners_user_group = get_or_create_normal_user_group()[0]
-            user.groups.set([django-for-runners_user_group])
-
-        return user, built
diff --git a/scripts/install b/scripts/install
index 233c626..7769f04 100755
--- a/scripts/install
+++ b/scripts/install
@@ -157,7 +157,6 @@ ynh_app_setting_set --app="$app" --key=redis_db --value="$redis_db"
 
 touch "$final_path/local_settings.py"
 
-cp "../conf/ynh_sso_ldap_backend.py" "$final_path/ynh_sso_ldap_backend.py"
 cp "../conf/ynh_urls.py" "$final_path/ynh_urls.py"
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 7f9ab31..a5d053b 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -147,7 +147,6 @@ ynh_store_file_checksum --file="$settings"
 
 touch "$final_path/local_settings.py"
 
-cp "../conf/ynh_sso_ldap_backend.py" "$final_path/ynh_sso_ldap_backend.py"
 cp "../conf/ynh_urls.py" "$final_path/ynh_urls.py"
 
 #=================================================