diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 0516b76d8..c67af18f5 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -79,7 +79,7 @@ module ProjectsHelper
   end
 
   def render_educoder_avatar_url(project_educoder)
-    [Rails.application.config_for(:configuration)['educoder']['main_site'], project_educoder&.image_url].join('/')
+    [Rails.application.config_for(:configuration)['educoder']['cdn_url'], project_educoder&.image_url].join('/')
   end
 
   def render_avatar_url(owner)