diff --git a/signin.pug b/signin.pug
index 525e40992..bbe69ac13 100644
--- a/signin.pug
+++ b/signin.pug
@@ -7,6 +7,7 @@ html
     title Xen Orchestra
     meta(name = 'author' content = 'Vates SAS')
     link(rel = 'stylesheet' href = 'styles/main.css')
+    link(rel = 'stylesheet' href = 'v4/styles/main.css')
   body
     .container
       .row-login