diff --git a/installer/templates/phx_web/components/layouts/root.html.heex b/installer/templates/phx_web/components/layouts/root.html.heex
index 12f7f1d87e..fdbd4aa4e1 100644
--- a/installer/templates/phx_web/components/layouts/root.html.heex
+++ b/installer/templates/phx_web/components/layouts/root.html.heex
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en" class="[scrollbar-gutter:stable]">
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
