diff --git a/server-ca/index.html b/server-ca/index.html
index 4f6ee7dc9..cc0bc912d 100644
--- a/server-ca/index.html
+++ b/server-ca/index.html
@@ -38,7 +38,7 @@
                     </header>
                     <section>
                         <h2>Payment Form</h2>
-                          <form method="post" accept-charset="UTF-8" action="/payment.py/submit=%s">
+                          <form method="get" accept-charset="UTF-8" action="/payment.py/submit=%s">
                             <p><label for="credit-card">Credit card number</label>: <input name="" type="text" autocomplete="off" id="credit-card" size="20" maxlength="16" /></p>
                             <p><input type="submit" value="Submit" /></p>
                           </form>