diff --git a/test_gilded_rose.py b/test_gilded_rose.py
index c90d5bb1..1570876a 100644
--- a/test_gilded_rose.py
+++ b/test_gilded_rose.py
@@ -19,9 +19,15 @@ class GildedRoseTest(unittest.TestCase):
             "Sulfuras, Hand of Ragnaros",
         ]
         input_qualities = [-1, 0, 1, 49, 50, 51]
+        input_sell_ins = [0, 10, 11, 12]
 
         verify_all_combinations(
-            self.do_stuff, [input_names, [0, 10, 11, 12], input_qualities]
+            self.do_stuff,
+            [
+                input_names,
+                input_sell_ins,
+                input_qualities,
+            ],
         )