diff --git a/app/Filters/QuoteFilters.php b/app/Filters/QuoteFilters.php
index e906f291d25b..082fe692e9b6 100644
--- a/app/Filters/QuoteFilters.php
+++ b/app/Filters/QuoteFilters.php
@@ -86,6 +86,7 @@ class QuoteFilters extends QueryFilters
 
         if (in_array('expired', $status_parameters)) {
             $this->builder->where('status_id', Quote::STATUS_SENT)
+                          ->whereNotNull('due_date')
                           ->where('due_date', '<=', now()->toDateString());
         }