diff --git a/treeherder/model/migrations/0009_remove_best_classification_and_is_verified_from_failure_line.py b/treeherder/model/migrations/0009_remove_best_classification_and_is_verified_from_failure_line.py
new file mode 100644
index 000000000..81dfaaa82
--- /dev/null
+++ b/treeherder/model/migrations/0009_remove_best_classification_and_is_verified_from_failure_line.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.13 on 2018-06-06 10:49
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('model', '0008_remove_failure_match'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='failureline',
+            name='best_classification',
+        ),
+        migrations.RemoveField(
+            model_name='failureline',
+            name='best_is_verified',
+        ),
+    ]
diff --git a/treeherder/model/models.py b/treeherder/model/models.py
index 0926d9450..7b23f7a87 100644
--- a/treeherder/model/models.py
+++ b/treeherder/model/models.py
@@ -889,17 +889,6 @@ class FailureLine(models.Model):
     stackwalk_stdout = models.TextField(blank=True, null=True)
     stackwalk_stderr = models.TextField(blank=True, null=True)
 
-    # Note that the case of best_classification = None and best_is_verified = True
-    # has the special semantic that the line is ignored and should not be considered
-    # for future autoclassifications.
-    best_classification = models.ForeignKey("ClassifiedFailure",
-                                            related_name="best_for_lines",
-                                            null=True,
-                                            db_index=True,
-                                            on_delete=models.SET_NULL)
-
-    best_is_verified = models.BooleanField(default=False)
-
     created = models.DateTimeField(auto_now_add=True)
     modified = models.DateTimeField(auto_now=True)