diff --git a/installer/templates/phx_web/components/core_components.ex b/installer/templates/phx_web/components/core_components.ex
index a9aecb5cb6..0f9fdf7d9a 100644
--- a/installer/templates/phx_web/components/core_components.ex
+++ b/installer/templates/phx_web/components/core_components.ex
@@ -188,7 +188,7 @@ defmodule <%= @web_namespace %>.CoreComponents do
     ~H"""
     <div class="fieldset mb-2">
       <label>
-        <input type="hidden" name={@name} value="false" disabled={@rest[:disabled]} />
+        <input type="hidden" name={@name} value="false" disabled={@rest[:disabled]} form={@rest[:form]} />
         <span class="label">
           <input
             type="checkbox"