diff --git a/project/backend/database/tests.py b/project/backend/database/tests.py
index 15dd48d7..6ba52e09 100644
--- a/project/backend/database/tests.py
+++ b/project/backend/database/tests.py
@@ -420,6 +420,7 @@ def test_entry_model(self):
 
         entry = Entry.objects.create(
             entry_id = 1,
+            entry_index = 1,
             content = "This is an entry.",
             entry_date = "2023-11-11",
             is_theorem_entry = True,