diff --git a/src/documents/migrations/1057_alter_customfieldinstance_value_select.py b/src/documents/migrations/1057_alter_customfieldinstance_value_select.py
index 473e1af78..be9a73e3c 100644
--- a/src/documents/migrations/1057_alter_customfieldinstance_value_select.py
+++ b/src/documents/migrations/1057_alter_customfieldinstance_value_select.py
@@ -55,7 +55,7 @@ def reverse_migrate_customfield_selects(apps, schema_editor):
                     instance.value_select = next(
                         index
                         for index, option in enumerate(old_select_options)
-                        if option.id == instance.value_select
+                        if option.get("id") == instance.value_select
                     )
                     instance.save()
 
diff --git a/src/documents/tests/test_migration_custom_field_selects.py b/src/documents/tests/test_migration_custom_field_selects.py
index efa09e4d5..118c14f39 100644
--- a/src/documents/tests/test_migration_custom_field_selects.py
+++ b/src/documents/tests/test_migration_custom_field_selects.py
@@ -14,9 +14,18 @@ class TestMigrateCustomFieldSelects(TestMigrations):
             data_type="select",
             extra_data={"select_options": ["Option 1", "Option 2", "Option 3"]},
         )
+        Document = apps.get_model("documents.Document")
+        doc = Document.objects.create(title="doc1")
+        CustomFieldInstance = apps.get_model("documents.CustomFieldInstance")
+        self.old_instance = CustomFieldInstance.objects.create(
+            field=self.old_format,
+            value_select=0,
+            document=doc,
+        )
 
     def test_migrate_old_to_new_storage_path(self):
         self.old_format.refresh_from_db()
+        self.old_instance.refresh_from_db()
 
         self.assertEqual(
             self.old_format.extra_data["select_options"],
@@ -27,6 +36,11 @@ class TestMigrateCustomFieldSelects(TestMigrations):
             ],
         )
 
+        self.assertEqual(
+            self.old_instance.value_select,
+            self.old_format.extra_data["select_options"][0]["id"],
+        )
+
 
 class TestMigrationCustomFieldSelectsReverse(TestMigrations):
     migrate_from = "1057_alter_customfieldinstance_value_select"
@@ -45,9 +59,18 @@ class TestMigrationCustomFieldSelectsReverse(TestMigrations):
                 ],
             },
         )
+        Document = apps.get_model("documents.Document")
+        doc = Document.objects.create(title="doc1")
+        CustomFieldInstance = apps.get_model("documents.CustomFieldInstance")
+        self.new_instance = CustomFieldInstance.objects.create(
+            field=self.new_format,
+            value_select="id1",
+            document=doc,
+        )
 
     def test_migrate_new_to_old_storage_path(self):
         self.new_format.refresh_from_db()
+        self.new_instance.refresh_from_db()
 
         self.assertEqual(
             self.new_format.extra_data["select_options"],
@@ -57,3 +80,8 @@ class TestMigrationCustomFieldSelectsReverse(TestMigrations):
                 "Option 3",
             ],
         )
+
+        self.assertEqual(
+            self.new_instance.value_select,
+            0,
+        )