diff --git a/apps/product/pos/api/v1/serializers/product_serializers.py b/apps/product/pos/api/v1/serializers/product_serializers.py
index 937836c..ab27ff6 100644
--- a/apps/product/pos/api/v1/serializers/product_serializers.py
+++ b/apps/product/pos/api/v1/serializers/product_serializers.py
@@ -20,7 +20,7 @@ class POSFreeProductSerializer(serializers.ModelSerializer):
             product = attrs['product']
             organization = attrs['organization']
 
-            if self.Meta.model.objects.filter(organization=organization, product=product,trash=false).exists():
+            if self.Meta.model.objects.filter(organization=organization, product=product,trash=False).exists():
                 raise FreePOSProductUniqueCheck()
 
         return attrs