diff --git a/app/models/user.rb b/app/models/user.rb
index 90c6da64d..3c5ca8000 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -75,6 +75,7 @@ class User < ApplicationModel
     # try to login against configure auth backends
     user_auth = nil
     config.each {|config_item|
+      next if !config_item[:adapter]
       file = "auth/#{config_item[:adapter]}"
       require file
       user_auth = Auth.const_get("#{config_item[:adapter].to_s.upcase}").check( username, password, config_item, user )
@@ -124,6 +125,7 @@ class User < ApplicationModel
     # try to login against configure auth backends
     user_auth = nil
     config.each {|config_item|
+      next if !config_item[:adapter]
       file = "sso/#{config_item[:adapter]}"
       require file
       user_auth = SSO.const_get("#{config_item[:adapter].to_s.upcase}").check( params, config_item )