diff --git a/booking.test_rooms.inc b/booking.test_rooms.inc
index 02f662b..a1d8b75 100644
--- a/booking.test_rooms.inc
+++ b/booking.test_rooms.inc
@@ -185,7 +185,7 @@ function booking_rooms_allocate_test_form_submit($form, &$form_state) {
 			{
 				//check for previous value
 				$previous_nid = 0;
-				$previous_nid = _booking_rooms_allocate_get_previous_value(&$form, $type, $room, $type . '[' . $room . '][' . $bed_index . ']');	
+				$previous_nid = _booking_rooms_allocate_get_previous_value($form, $type, $room, $type . '[' . $room . '][' . $bed_index . ']');	
 								
 				if (! empty($person)) {
 					//extract nid from $person using regex
@@ -194,7 +194,7 @@ function booking_rooms_allocate_test_form_submit($form, &$form_state) {
 						$nid = $matches[1];
 
 						//handle the insert/update/deletes required
-						_booking_rooms_allocate_test_form_submit_helper(&$room_mapping, $room, $type_id, $bed_index, $nid, $previous_nid);	
+						_booking_rooms_allocate_test_form_submit_helper($room_mapping, $room, $type_id, $bed_index, $nid, $previous_nid);	
 													
 					}	//parsed node id successfully