diff --git a/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm b/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
index f6ba88689..774daf8ec 100644
--- a/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
+++ b/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
@@ -260,10 +260,9 @@ sub addToScratchCart {
 	my @eventsInCart = split("\n",$self->session->scratch->get('EMS_scratch_cart'));
 	my ($isApproved) = $self->session->db->quickArray("select approved from EventManagementSystem_products where productId = ?",[$event]);
 	return undef unless $isApproved;
-	$self->session->errorHandler->warn("got here");
 	if (scalar(@eventsInCart) == 0) {
 		# the cart is empty, so check if this is a master event or not.
-		my ($isParent) = $self->session->db->quickArray("select productId from EventManagementSystem_products where productId = ? and (prerequisiteId is not NULL and prerequisiteId != '')",[$event]);
+		my ($isParent) = $self->session->db->quickArray("select productId from EventManagementSystem_products where productId = ? and (prerequisiteId is NULL or prerequisiteId = '')",[$event]);
 		return undef unless $isParent;
 		$self->session->scratch->set('currentMainEvent',$event);