diff --git a/tests/acceptance/DiscountCest.php b/tests/acceptance/DiscountCest.php
index fd7696dfbf47..4ab034340d23 100644
--- a/tests/acceptance/DiscountCest.php
+++ b/tests/acceptance/DiscountCest.php
@@ -18,6 +18,11 @@ class DiscountCest
     {
         $I->wantTo('test line item discounts');
 
+        // enable line item taxes
+        $I->amOnPage('/settings/tax_rates');
+        $I->checkOption('#invoice_item_taxes');
+        $I->click('Save');
+
         $clientEmail = $this->faker->safeEmail;
         $itemTaxName = $this->faker->word;
         $productKey = $this->faker->word;