diff --git a/app/models/active_admin/permission.rb b/app/models/active_admin/permission.rb
index 2fd66e3..4ff5847 100644
--- a/app/models/active_admin/permission.rb
+++ b/app/models/active_admin/permission.rb
@@ -3,7 +3,7 @@ class Permission < ActiveRecord::Base
     self.table_name = :active_admin_permissions
     role_based_authorizable
 
-    enum state: { cannot: 0, can: 1 }
+    enum :state, { cannot: 0, can: 1 }
 
     belongs_to :managed_resource
     delegate :class_name, :action, :name, :const, :active?, :for_active_admin_page?, to: :managed_resource
diff --git a/lib/active_admin_role/role_based_authorizable.rb b/lib/active_admin_role/role_based_authorizable.rb
index 3177d53..556e748 100644
--- a/lib/active_admin_role/role_based_authorizable.rb
+++ b/lib/active_admin_role/role_based_authorizable.rb
@@ -3,7 +3,7 @@ module RoleBasedAuthorizable
     extend ActiveSupport::Concern
 
     included do
-      enum role: config.roles
+      enum :role, config.roles
       delegate :super_user_roles, :guest_user_roles, to: :class
       validates :role, presence: true
     end