diff --git a/lib/generators/jsonapi/swagger/swagger_generator.rb b/lib/generators/jsonapi/swagger/swagger_generator.rb
index 3e4be3b..1c1b999 100644
--- a/lib/generators/jsonapi/swagger/swagger_generator.rb
+++ b/lib/generators/jsonapi/swagger/swagger_generator.rb
@@ -34,8 +34,8 @@ module Jsonapi
       (class_path + [file_name]).map!(&:camelize).join("::")
     end
 
-    def sortable_feilds_desc
-      t(:sortable_fields) + ': [-]' + sortable_fields.join(',')
+    def sortable_fields_desc
+      t(:sortable_fields) + ': (-)' + sortable_fields.join(',')
     end
 
     def model_klass
diff --git a/lib/generators/jsonapi/swagger/templates/swagger.rb.erb b/lib/generators/jsonapi/swagger/templates/swagger.rb.erb
index afbd91f..d0fc818 100644
--- a/lib/generators/jsonapi/swagger/templates/swagger.rb.erb
+++ b/lib/generators/jsonapi/swagger/templates/swagger.rb.erb
@@ -12,7 +12,7 @@ RSpec.describe '<%= resouces_name %>', type: :request do
       produces 'application/vnd.api+json'
       parameter name: :'page[number]', in: :query, type: :string, description: '<%= t(:page_num) %>', required: false
 <% if sortable_fields.present? -%>
-      parameter name: :'sort', in: :query, type: :string, description: '<%= sortable_feilds_desc %>', required: false
+      parameter name: :'sort', in: :query, type: :string, description: '<%= sortable_fields_desc %>', required: false
 <% end -%>
 <% if relationships.present? -%>
       parameter name: :include, in: :query, type: :string, description: '<%= t(:include_related_data) %>', required: false