diff --git a/app/models/service_template.rb b/app/models/service_template.rb
index d5cb561c271..38068341c64 100644
--- a/app/models/service_template.rb
+++ b/app/models/service_template.rb
@@ -80,7 +80,7 @@ class ServiceTemplate < ApplicationRecord
   scope :without_service_template_catalog_id,       ->         { where(:service_template_catalog_id => nil) }
   scope :with_existent_service_template_catalog_id, ->         { where.not(:service_template_catalog_id => nil) }
   scope :displayed,                                 ->         { where(:display => true) }
-  scope :public_service_templates,                  ->         { where.not(:internal => true) }
+  scope :public_service_templates,                  ->         { where(:internal => [false, nil]) }
 
   def self.catalog_item_types
     ci_types = Set.new(Rbac.filtered(ExtManagementSystem.all).flat_map(&:supported_catalog_types))