diff --git a/docroot/modules/humsci/hs_field_helpers/src/Plugin/views/query/Sql.php b/docroot/modules/humsci/hs_field_helpers/src/Plugin/views/query/Sql.php
index f9d426af9f..d35d4f9fd0 100644
--- a/docroot/modules/humsci/hs_field_helpers/src/Plugin/views/query/Sql.php
+++ b/docroot/modules/humsci/hs_field_helpers/src/Plugin/views/query/Sql.php
@@ -104,6 +104,9 @@ protected function getDateFields() {
 
     foreach ($this->orderby as $order_item) {
       $field_alias = $order_item['field'];
+      if (!isset($this->fields[$field_alias])) {
+        continue;
+      }
       $field_data = $this->fields[$field_alias];
       $table = $field_data['table'];