diff --git a/app/views/hooks/_view_account_login_bottom.html.erb b/app/views/hooks/_view_account_login_bottom.html.erb
index fbda800..a538aa7 100644
--- a/app/views/hooks/_view_account_login_bottom.html.erb
+++ b/app/views/hooks/_view_account_login_bottom.html.erb
@@ -27,7 +27,7 @@
     <%= button_tag(name: 'login-oauth', tabindex: 6, id: 'login-oauth-submit', title: l(:oauth_login_with),
           style: "background: #{Setting.plugin_redmine_oauth[:button_color]}") do %>
       <i id="button_icon" class="<%= Setting.plugin_redmine_oauth[:button_icon] %>"></i>
-      <%= l(:oauth_login_via, oauth: Setting.plugin_redmine_oauth[:custom_name].strip.empty? ? Setting.plugin_redmine_oauth[:oauth_name] : Setting.plugin_redmine_oauth[:custom_name]).html_safe %>
+      <%= l(:oauth_login_via, oauth: Setting.plugin_redmine_oauth[:custom_name].blank? ? Setting.plugin_redmine_oauth[:oauth_name] : Setting.plugin_redmine_oauth[:custom_name]).html_safe %>
     <% end %>
   <% end %>
 <% end %>
diff --git a/config/locales/cs.yml b/config/locales/cs.yml
index 29daaf4..4b1ac5d 100644
--- a/config/locales/cs.yml
+++ b/config/locales/cs.yml
@@ -47,6 +47,6 @@ cs:
   oauth_custom_scope: OAuth scope
   oauth_custom_scope_info: OAuth scope (default - 'openid profile email')
   oauth_custom_uid_field: UID field
-  oauth_custom_uid_field_info: UID field (default - sub)
+  oauth_custom_uid_field_info: UID field (default - preferred_username)
   oauth_custom_email_field: Email field
   oauth_custom_email_field_info: Email field (default - email)
diff --git a/config/locales/de.yml b/config/locales/de.yml
index a480f55..9bfe10f 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -47,6 +47,6 @@ de:
   oauth_custom_scope: OAuth scope
   oauth_custom_scope_info: OAuth scope (default - 'openid profile email')
   oauth_custom_uid_field: UID field
-  oauth_custom_uid_field_info: UID field (default - sub)
+  oauth_custom_uid_field_info: UID field (default - preferred_username)
   oauth_custom_email_field: Email field
   oauth_custom_email_field_info: Email field (default - email)
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 3b11e12..1a2ad91 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -47,6 +47,6 @@ en:
   oauth_custom_scope: OAuth scope
   oauth_custom_scope_info: OAuth scope (default - 'openid profile email')
   oauth_custom_uid_field: UID field
-  oauth_custom_uid_field_info: UID field (default - sub)
+  oauth_custom_uid_field_info: UID field (default - preferred_username)
   oauth_custom_email_field: Email field
   oauth_custom_email_field_info: Email field (default - email)
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 9fff6dd..fc1bc74 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -47,6 +47,6 @@ fr:
   oauth_custom_scope: OAuth scope
   oauth_custom_scope_info: OAuth scope (default - 'openid profile email')
   oauth_custom_uid_field: UID field
-  oauth_custom_uid_field_info: UID field (default - sub)
+  oauth_custom_uid_field_info: UID field (default - preferred_username)
   oauth_custom_email_field: Email field
   oauth_custom_email_field_info: Email field (default - email)
diff --git a/init.rb b/init.rb
index ab520f7..869e9df 100644
--- a/init.rb
+++ b/init.rb
@@ -37,6 +37,13 @@
     client_id: '',
     client_secret: '',
     tenant_id: '',
+    custom_name: '',
+    custom_auth_endpoint: '',
+    custom_token_endpoint: '',
+    custom_profile_endpoint: '',
+    custom_scope: 'openid profile email',
+    custom_uid_field: 'preferred_username',
+    custom_email_field: 'email',
     button_color: '#ffbe6f',
     button_icon: 'fas fa-address-card'
   }, partial: 'settings/oauth_settings'