app/views/api/speakers/index.jbuilder

@@ -1,6 +1,6 @@
 @speakers.each do |speaker|
   json.set! speaker.user_id do
-    json.extract! speaker, :twitter, :github, :biography, :public_email, :organisation, :last_name, :first_name
-    json.picture speaker.picture.serializable_hash
+    json.extract! speaker, :twitter, :github, :biography, :public_email, :organisation, :last_name, :first_name, :name
+    json.picture rails_blob_url(speaker.picture.variant(resize_to_fill: [100, 100]))
   end
 end