diff --git a/app/models/project_category.rb b/app/models/project_category.rb
index df8962e00..a8362af69 100644
--- a/app/models/project_category.rb
+++ b/app/models/project_category.rb
@@ -20,4 +20,7 @@ class ProjectCategory < ApplicationRecord
   include Projectable
   has_ancestry
 
+  def logo_url
+    ""
+  end
 end
diff --git a/app/views/project_categories/pinned_index.json.jbuilder b/app/views/project_categories/pinned_index.json.jbuilder
index c2f2e024c..db3997ebd 100644
--- a/app/views/project_categories/pinned_index.json.jbuilder
+++ b/app/views/project_categories/pinned_index.json.jbuilder
@@ -1 +1 @@
-json.project_categories @project_categories, :id, :name
+json.project_categories @project_categories, :id, :name, :logo_url