diff --git a/themes/default/views/bundles/ca_search_form_placements.php b/themes/default/views/bundles/ca_search_form_placements.php
index 430c1804b1..87b5f000e3 100644
--- a/themes/default/views/bundles/ca_search_form_placements.php
+++ b/themes/default/views/bundles/ca_search_form_placements.php
@@ -75,7 +75,7 @@
 				
 				availableDisplayList: <?= json_encode($va_available_display_items); ?>,
 				initialDisplayList: 	<?= json_encode($va_to_display_items); ?>,
-				initialDisplayListOrder : <?= json_encode(array_keys($va_to_display_items)); ?>,
+				initialDisplayListOrder : <?= json_encode(array_keys($va_to_display_items ?? [])); ?>,
 				
 				availableSearchID: 'bundleEditorAvailableListSearch',