diff --git a/src/Searcher.php b/src/Searcher.php
index 8b7991f..e0df75d 100644
--- a/src/Searcher.php
+++ b/src/Searcher.php
@@ -359,6 +359,9 @@ public function makeSelects(ModelToSearchThrough $currentModel): array
                         $modelOrderKey = count($this->orderByModel);
                     }
                 }
+            } else {
+                $qualifiedKeyName = 'CAST(NULL AS bigint)';
+                $qualifiedOrderByColumnName = 'CAST(null AS timestamp)';
             }
 
             return array_filter([