diff --git a/app/Models/ProductSku.php b/app/Models/ProductSku.php
index c931a4f7..c552baf0 100644
--- a/app/Models/ProductSku.php
+++ b/app/Models/ProductSku.php
@@ -161,7 +161,7 @@ class ProductSku extends Model
     public function getSaleableStockAttribute(): int
     {
         if ($this->isOnline()) {
-            if ($this->is_pre_sale || $this->spu->is_pre_sale) {
+            if ($this->is_pre_sale || $this->spu?->is_pre_sale) {
                 return 99999;
             }
             return $this->attributes['stock'];