diff --git a/app/views/organizations/projects/index.json.jbuilder b/app/views/organizations/projects/index.json.jbuilder
index 302bc72bf..74232799c 100644
--- a/app/views/organizations/projects/index.json.jbuilder
+++ b/app/views/organizations/projects/index.json.jbuilder
@@ -10,7 +10,7 @@ json.projects @projects.each do |project|
     json.image_url url_to_avatar(creator).blank?? User::Avatar.get_letter_avatar_url(creator.login) : url_to_avatar(creator)
   end
   json.created_at project.created_on
-  json.size replace_bytes_to_b(number_to_human_size(gitea_result['size'].to_i*1024))
+  json.size gitea_result.present? ? replace_bytes_to_b(number_to_human_size(gitea_result['size'].to_i*1024)) : 0
   json.mirror_url project.repository&.mirror_url
   json.type project.numerical_for_project_type
   json.praised project.praised_by?(current_user)