diff --git a/app/views/layouts/application.html.haml b/app/views/layouts/application.html.haml
index 28285f2ea..7aee764b5 100644
--- a/app/views/layouts/application.html.haml
+++ b/app/views/layouts/application.html.haml
@@ -23,9 +23,6 @@
 
     = Gon::Base.render_data(camel_case: true, init: true, nonce:  request.content_security_policy_nonce)
 
-    - if Rails.env.development? && feature_enabled?(:xray)
-      = stylesheet_link_tag :xray
-
   %body{ id: content_for(:page_id), class: browser.platform.ios? ? 'ios' : nil }
     .page-wrapper
       = render partial: "layouts/outdated_browser_banner"
@@ -43,7 +40,4 @@
       - if content_for?(:footer)
         = content_for(:footer)
 
-      - if Rails.env.development? && feature_enabled?(:xray)
-        = javascript_include_tag :xray
-
       = yield :charts_js
diff --git a/config/initializers/flipper.rb b/config/initializers/flipper.rb
index 966ea3046..42deca68d 100644
--- a/config/initializers/flipper.rb
+++ b/config/initializers/flipper.rb
@@ -35,8 +35,7 @@ features = [
   :instructeur_bypass_email_login_token,
   :localization,
   :make_experts_notifiable,
-  :procedure_routage_api,
-  :xray
+  :procedure_routage_api
 ]
 
 def database_exists?