diff --git a/admin/templates/default/app.css b/admin/templates/default/app.css
index 821a8674dc..3bc9352f01 100644
--- a/admin/templates/default/app.css
+++ b/admin/templates/default/app.css
@@ -108,6 +108,10 @@ td.admin_userAgent span {
 	max-width: 100% !important;
 }
 
+#acl-edit #_acl_account {
+	min-width: 16rem;
+}
+
 /**
  * mail account wizard and edit
  */