diff --git a/booking.variety_admin.inc b/booking.variety_admin.inc
index b249893..d75c455 100644
--- a/booking.variety_admin.inc
+++ b/booking.variety_admin.inc
@@ -398,7 +398,7 @@ function booking_varietysessions_csv_report($timeslot_id) {
     ->fetchAllAssoc('vid');
 
   watchdog('booking_debug', 'booking_varietysessions_csv_report variety sessions: <pre>@info</pre>', array('@info' => print_r( $variety_sessions, true)));
-  if ($variety_sessions->rowCount() == 0) {
+  if (! $variety_sessions) {
     drupal_set_message("Error: Could not find matching variety session timeslot. Unable to view session membership.", 'error', FALSE);
     drupal_goto('admin/config/booking/variety');
     return "";