diff --git a/modules/signup/rsvp_signup.module b/modules/signup/rsvp_signup.module
index cf181aa..dde7d32 100644
--- a/modules/signup/rsvp_signup.module
+++ b/modules/signup/rsvp_signup.module
@@ -44,7 +44,7 @@ function rsvp_signup_form_submit($form, &$form_state) {
   // is confirming his/her attendance, and has not already signed up
   // for this event, sign him/her up for it.
   if ($reply == RSVP_ATT_YES && module_exists('signup')) {
-    include_once('./'. drupal_get_path('module', 'signup') . '/includes/no_views.inc');
+    module_load_include('inc', 'signup', 'includes/no_views');
     
     // check first if the signup status is set to open. 
     // Otherwise we get a access denied error from signup_list_user_signups, which we do not expect. 
@@ -66,7 +66,7 @@ function rsvp_signup_form_submit($form, &$form_state) {
       }
     }
     else {
-      include_once('./'. drupal_get_path('module', 'signup') . '/includes/signup_form.inc');
+      module_load_include('inc', 'signup', 'includes/signup_form');
       // Sign up the unregistered user.
       if (signup_validate_anon_email($rsvp->nid, $invite_target->email)) {
         $signup_form = array(