diff --git a/db/migrate/20210202052337_migrate_variant_unit_values.rb b/db/migrate/20210202052337_migrate_variant_unit_values.rb
index 9c6cf46a2e..56abf49508 100644
--- a/db/migrate/20210202052337_migrate_variant_unit_values.rb
+++ b/db/migrate/20210202052337_migrate_variant_unit_values.rb
@@ -1,5 +1,8 @@
 class MigrateVariantUnitValues < ActiveRecord::Migration
   def up
+    Spree::Variant.where(product_id: nil).find_each do |variant|
+      variant.destroy
+    end
     Spree::Variant.where(unit_value: [nil, Float::NAN]).find_each do |variant|
       variant.unit_value = 1
       variant.save