diff --git a/lib/data_breach.rb b/lib/data_breach.rb
index 3916dbcf..df5c7cc5 100644
--- a/lib/data_breach.rb
+++ b/lib/data_breach.rb
@@ -73,9 +73,9 @@ def data_breach(report, logged_in_user)
       )
 
       if @logged_in_user
-        set_reply_to_headers(nil, 'Reply-To' => @logged_in_user.email)
+        set_reply_to_headers('Reply-To' => @logged_in_user.email)
       elsif report.contact_email
-        set_reply_to_headers(nil, 'Reply-To' => report.contact_email)
+        set_reply_to_headers('Reply-To' => report.contact_email)
       end
 
       # Set a header so we can filter in the mailbox
diff --git a/lib/volunteer_contact_form.rb b/lib/volunteer_contact_form.rb
index 9b9b3acc..6e526b68 100644
--- a/lib/volunteer_contact_form.rb
+++ b/lib/volunteer_contact_form.rb
@@ -79,7 +79,7 @@ def volunteer_message(contact, logged_in_user)
       reply_to_address = MailHandler.address_from_name_and_email(
         contact.name, contact.email
       )
-      set_reply_to_headers(nil, 'Reply-To' => reply_to_address)
+      set_reply_to_headers('Reply-To' => reply_to_address)
 
       # Set a header so we can filter in the mailbox
       headers['X-WDTK-Contact'] = 'wdtk-volunteer'