diff --git a/vendor/registrasion/registrasion/views.py b/vendor/registrasion/registrasion/views.py
index af47185d..d1692695 100644
--- a/vendor/registrasion/registrasion/views.py
+++ b/vendor/registrasion/registrasion/views.py
@@ -650,7 +650,12 @@ def _handle_voucher(request, prefix):
     ''' Handles a voucher form in the given request. Returns the voucher
     form instance, and whether the voucher code was handled. '''
 
-    voucher_form = forms.VoucherForm(request.POST or None, prefix=prefix)
+    initial = {}
+    if request.GET:
+        initial = request.GET.copy()
+
+    voucher_form = forms.VoucherForm(request.POST or None, prefix=prefix,
+        initial=initial)
     current_cart = CartController.for_user(request.user)
 
     if (voucher_form.is_valid() and