diff --git a/app/models/learning_object.rb b/app/models/learning_object.rb
index 6fefd9d37f7fb4ca043cd627b59dda433fe1bfb0..b76498357d721ab00abdbb556d83280027c2c2ae 100644
--- a/app/models/learning_object.rb
+++ b/app/models/learning_object.rb
@@ -92,7 +92,7 @@ class LearningObject < ApplicationRecord
 
   scope :search_import, -> { includes(:object_type, :tags, :subjects, :educational_stages, :publisher) }
   def search_data
-    source = !publisher.nil? && publisher.is_a?(Institution) ? publisher.name : nil
+    source = !publisher.nil? ? publisher.name : ""
     type = object_type.try(:id)
     {
       name: name,
diff --git a/app/services/search_service/learning_object.rb b/app/services/search_service/learning_object.rb
index a3700cfb641943c021f2586b0ffc1877f8d613df..9f187bd00f60f61bf04567255c2321f784445d57 100644
--- a/app/services/search_service/learning_object.rb
+++ b/app/services/search_service/learning_object.rb
@@ -37,7 +37,7 @@ module SearchService
     private
 
     def search_fields
-      [:name, :description, :author, :object_type]
+      [:name, :description, :author, :object_type, :source]
     end
 
     def mount_filter