diff --git a/app/views/account/settings/_cancellation.html.erb b/app/views/account/settings/_cancellation.html.erb
index ec68c6f55..9165feeb7 100644
--- a/app/views/account/settings/_cancellation.html.erb
+++ b/app/views/account/settings/_cancellation.html.erb
@@ -8,7 +8,7 @@
     <div data-controller="dialog" data-dialog-modal-value="true">
       <button type="button" class="btn btn--negative" data-action="dialog#open">Delete account</button>
 
-      <dialog class="dialog panel panel--wide shadow" data-dialog-target="dialog">
+      <dialog class="dialog panel panel--wide shadow" data-dialog-target="dialog" style="--panel-size: 48ch;">
         <h2 class="margin-none txt-large txt-negative">Delete your account?</h2>
         <ul class="txt-align-start">
           <li>All users, including you, will lose access</li>