diff --git a/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html b/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
index 5f881f0646..4af019301e 100644
--- a/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
+++ b/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
@@ -69,7 +69,7 @@
                 </details>
             {% endif %}
             {% if order_questions_form.fields %}
-                <details class="panel panel-default" open id="invoice-details">
+                <details class="panel panel-default" open>
                     <summary class="panel-heading">
                         <h3 class="panel-title">
                             <strong>{% trans "Additional order information" %}</strong>
diff --git a/src/pretix/presale/templates/pretixpresale/event/order_modify.html b/src/pretix/presale/templates/pretixpresale/event/order_modify.html
index f9879cdef2..0f6eda02a6 100644
--- a/src/pretix/presale/templates/pretixpresale/event/order_modify.html
+++ b/src/pretix/presale/templates/pretixpresale/event/order_modify.html
@@ -49,7 +49,7 @@
                 </details>
             {% endif %}
             {% if order_questions_form.fields %}
-                <details class="panel panel-default" open id="invoice-details">
+                <details class="panel panel-default" open>
                     <summary class="panel-heading">
                         <h3 class="panel-title">
                             <strong>{% trans "Additional order information" %}</strong>