diff --git a/minerva/machine.py b/minerva/machine.py
index bb42f23..6c98156 100644
--- a/minerva/machine.py
+++ b/minerva/machine.py
@@ -47,7 +47,7 @@ class Machine:
                                   'SubnetId':    self.pier.subnet_id,
                                   'Groups':      self.pier.groups,
                                   'DeviceIndex': 0}],
-            BlockDeviceMappings = [{'DeviceName': '/dev/xvda',
+            BlockDeviceMappings = [{'DeviceName': '/dev/sda1',
                                     'Ebs': {'VolumeSize':          self.disk_size,
                                             'DeleteOnTermination': True}}],
             IamInstanceProfile = iam