diff --git a/internal/deploy/deploy.go b/internal/deploy/deploy.go
index aabb101..2a14bff 100644
--- a/internal/deploy/deploy.go
+++ b/internal/deploy/deploy.go
@@ -24,7 +24,7 @@ import (
 )
 
 // must match the value in tests/addons/__init__.py
-const magicMITMURL = "http://mitm.local"
+const magicMITMURL = "http://mitm.code"
 
 type SlidingSyncDeployment struct {
 	complement.Deployment
diff --git a/tests/addons/controller.py b/tests/addons/controller.py
index 6b9c42f..f4d21ea 100644
--- a/tests/addons/controller.py
+++ b/tests/addons/controller.py
@@ -1,8 +1,8 @@
 import random
 from mitmproxy import ctx
 from flask import Flask, request, make_response
-
-MITM_DOMAIN_NAME = "mitm.local"
+# must match code in deploy.go
+MITM_DOMAIN_NAME = "mitm.code"
 app = Flask("mitmoptset")
 
 prev_options = {