diff --git a/payment_paypal/indico_payment_paypal/plugin.py b/payment_paypal/indico_payment_paypal/plugin.py
index 1a57287..5711d30 100644
--- a/payment_paypal/indico_payment_paypal/plugin.py
+++ b/payment_paypal/indico_payment_paypal/plugin.py
@@ -27,15 +27,15 @@ from indico.util.i18n import _
 
 
 class PluginSettingsForm(PaymentPluginSettingsFormBase):
-    url = URLField(_('PayPal URL'), [DataRequired()], description=_('URL of PayPal'))
-    business = StringField(_('Business'), [DataRequired()],
-                           description=_('The PayPal ID or an email address associated with the PayPal account'))
+    url = URLField(_('API URL'), [DataRequired()], description=_('URL of the PayPal HTTP API.'))
+    business = StringField(_('Business'),
+                           description=_('The default PayPal ID or email address associated with a PayPal account. '
+                                         'Event managers will be able to override this.'))
 
 
 class EventSettingsForm(PaymentEventSettingsFormBase):
-    url = URLField(_('PayPal URL'), [DataRequired()], description=_('URL of PayPal'))
     business = StringField(_('Business'), [DataRequired()],
-                           description=_('The PayPal ID or an email address associated with the PayPal account'))
+                           description=_('The PayPal ID or email address associated with a PayPal account.'))
 
 
 class PaypalPaymentPlugin(PaymentPluginMixin, IndicoPlugin):
diff --git a/payment_paypal/indico_payment_paypal/templates/event_payment_form.html b/payment_paypal/indico_payment_paypal/templates/event_payment_form.html
index 63ec541..7bfef15 100644
--- a/payment_paypal/indico_payment_paypal/templates/event_payment_form.html
+++ b/payment_paypal/indico_payment_paypal/templates/event_payment_form.html
@@ -9,7 +9,7 @@ Clicking on the <strong>Pay now</strong> button you will get redirected to the P
     <dd>{{ amount }} {{ currency }}</dd>
     <dt></dt>
     <dd>
-        <form action="{{ event_settings.url }}" method="POST" id="paypal">
+        <form action="{{ settings.url }}" method="POST" id="paypal">
             <input type="hidden" name="cmd" value="_xclick">
             <input type="hidden" name="business" value="{{ event_settings.business}}">
             <input type="hidden" name="item_name" value="{{ registrant.getFamilyName() }}, {{ registrant.getFirstName() }}: registration for {{ event.getTitle() }}">