diff --git a/www/conservancy/static/supporter/index.html b/www/conservancy/static/supporter/index.html
index 1ec6443fdd29418b37b32e8debab518409e91ffb..573ed4eff1b8c8769ab3337783cc43ef51e08e2e 100644
--- a/www/conservancy/static/supporter/index.html
+++ b/www/conservancy/static/supporter/index.html
@@ -129,6 +129,7 @@ internal policies</a> are published and available for scrutiny.</p>
 <a id="annual"></a>
 <form id="supporter-form" action="https://www.paypal.com/cgi-bin/webscr" method="post" name="supporter">
 <div id="supporter-form-inputs">
+            <input type="hidden" name="return" value="https://sfconservancy.org/supporter/thank-you.html" />
             <input type="hidden" name="cmd" value="_xclick" />
             <input type="hidden" name="business" value="supporter@sfconservancy.org" />
             <input type="hidden" name="item_name" value="Conservancy Supporter, Annual" />
@@ -187,6 +188,7 @@ internal policies</a> are published and available for scrutiny.</p>
   monthly supporter for at least 12 months.</p>
 <form id="supporter-form" action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
 <div id="supporter-form-inputs">
+            <input type="hidden" name="return" value="https://sfconservancy.org/supporter/thank-you.html" />
             <input type="hidden" name="cmd" value="_s-xclick">
             <input type="hidden" name="item_name" value="Conservancy Supporter, Monthly" />
             <input type="hidden" name="hosted_button_id" value="UU7VBCXYV7UPQ">