diff --git a/scenario/test_volumes.py b/scenario/test_volumes.py
index 9b12a9c..79d4931 100644
--- a/scenario/test_volumes.py
+++ b/scenario/test_volumes.py
@@ -119,7 +119,7 @@
         """
         parameters = {
             'key_name': self.keypair_name,
-            'instance_type': self.conf.instance_type,
+            'instance_type': self.conf.minimal_instance_type,
             'image_id': self.conf.minimal_image_ref,
             'volume_description': self.volume_description,
             'timeout': self.conf.build_timeout,