diff --git a/cinder/tests/unit/volume/test_volume.py b/cinder/tests/unit/volume/test_volume.py
index 791cfd4cfb5..d54064f4e9f 100644
--- a/cinder/tests/unit/volume/test_volume.py
+++ b/cinder/tests/unit/volume/test_volume.py
@@ -1737,6 +1737,21 @@ class VolumeTestCase(base.BaseVolumeTestCase):
                           volume)
         db.volume_destroy(self.context, volume.id)
 
+    def test_attachment_reserve_with_bootable_volume(self):
+        # test the private _attachment_reserve method with a bootable,
+        # in-use, multiattach volume.
+        instance_uuid = fake.UUID1
+        volume = tests_utils.create_volume(self.context, status='in-use')
+        tests_utils.attach_volume(self.context, volume.id, instance_uuid,
+                                  'attached_host', 'mountpoint', mode='rw')
+        volume.multiattach = True
+        volume.bootable = True
+
+        attachment = self.volume_api._attachment_reserve(
+            self.context, volume, instance_uuid)
+
+        self.assertEqual(attachment.attach_status, 'reserved')
+
     def test_unreserve_volume_success_in_use(self):
         UUID = six.text_type(uuid.uuid4())
         volume = tests_utils.create_volume(self.context, status='attaching')
diff --git a/cinder/volume/api.py b/cinder/volume/api.py
index 8c99e5c803d..04ea5c32c83 100644
--- a/cinder/volume/api.py
+++ b/cinder/volume/api.py
@@ -2060,7 +2060,7 @@ class API(base.Base):
         if (vref.get('multiattach', False) and
                 vref.status == 'in-use' and
                 vref.bootable):
-            context.authorize(
+            ctxt.authorize(
                 attachment_policy.MULTIATTACH_BOOTABLE_VOLUME_POLICY)
 
         # FIXME(JDG):  We want to be able to do things here like reserve a