diff --git a/judge/migrations/0179_submission_result_lang_index.py b/judge/migrations/0179_submission_result_lang_index.py
new file mode 100644
index 0000000..3e43918
--- /dev/null
+++ b/judge/migrations/0179_submission_result_lang_index.py
@@ -0,0 +1,19 @@
+# Generated by Django 3.2.18 on 2024-01-23 00:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0178_remove_user_script"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="submission",
+            index=models.Index(
+                fields=["language", "result"], name="judge_submi_languag_874af4_idx"
+            ),
+        ),
+    ]
diff --git a/judge/models/submission.py b/judge/models/submission.py
index 5bc6863..43b8224 100644
--- a/judge/models/submission.py
+++ b/judge/models/submission.py
@@ -276,6 +276,7 @@ class Submission(models.Model):
         indexes = [
             models.Index(fields=["problem", "user", "-points"]),
             models.Index(fields=["contest_object", "problem", "user", "-points"]),
+            models.Index(fields=["language", "result"]),
         ]