diff --git a/billing/views.py b/billing/views.py
index 7885dc5..09b08b5 100644
--- a/billing/views.py
+++ b/billing/views.py
@@ -228,6 +228,7 @@ class VerifyPaymentView(StaffEditorPermissionMixin, generics.UpdateAPIView):
             payment.paid = True
             payment.paid_at = timezone.now()
             payment.method = "TRANSFER"
+            payment.mib_reference = mib_resp["transaction"]["ref"] or ""
             payment.save()
             return True