diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 19239e494..e3079c36a 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -23,7 +23,10 @@ class SessionsController < ApplicationController
 
     respond_to do |format|
       format.html { redirect_to_session_magic_link magic_link }
-      format.json { head :created }
+      format.json do
+        response.set_header("X-Magic-Link-Code", magic_link&.code) if Rails.env.development? && magic_link
+        head :created
+      end
     end
   end