diff --git a/nova_powervm/tests/virt/powervm/test_image.py b/nova_powervm/tests/virt/powervm/test_image.py
index 78a0c9fc..d7867456 100644
--- a/nova_powervm/tests/virt/powervm/test_image.py
+++ b/nova_powervm/tests/virt/powervm/test_image.py
@@ -48,7 +48,7 @@ class TestImage(test.TestCase):
             'is_public': False,
             'status': 'active',
             'disk_format': 'raw',
-            'container_format': 'base',
+            'container_format': 'bare',
             'properties': {
                 'image_location': 'snapshot',
                 'image_state': 'available',
diff --git a/nova_powervm/virt/powervm/image.py b/nova_powervm/virt/powervm/image.py
index 35209d10..ac4aa256 100644
--- a/nova_powervm/virt/powervm/image.py
+++ b/nova_powervm/virt/powervm/image.py
@@ -51,7 +51,7 @@ def snapshot_metadata(context, image_api, image_id, instance):
         'is_public': False,
         'status': 'active',
         'disk_format': 'raw',
-        'container_format': 'base',
+        'container_format': 'bare',
         'properties': {
             'image_location': 'snapshot',
             'image_state': 'available',