diff --git a/tempest/api/image/v2/test_images.py b/tempest/api/image/v2/test_images.py
index f6ca317..e9c7dba 100644
--- a/tempest/api/image/v2/test_images.py
+++ b/tempest/api/image/v2/test_images.py
@@ -132,7 +132,7 @@
         """
         self._require_import_method('web-download')
 
-        image = self._create_image()
+        image = self._create_image(disk_format='qcow2')
         # Now try to get image details
         body = self.client.show_image(image['id'])
         self.assertEqual(image['id'], body['id'])