diff --git a/app/helpers/users_helper.rb b/app/helpers/users_helper.rb
index 7a79457e8..86298326b 100644
--- a/app/helpers/users_helper.rb
+++ b/app/helpers/users_helper.rb
@@ -1,6 +1,6 @@
 module UsersHelper
   def email_sig(user)
     verifier = ActiveSupport::MessageVerifier.new(Danbooru.config.email_key, serializer: JSON, digest: "SHA256")
-    verifier.generate("#{user_id}")
+    verifier.generate("#{user.id}")
   end
 end