diff --git a/os_cloud_config/nodes.py b/os_cloud_config/nodes.py
index cc4fe29..8b9f79f 100644
--- a/os_cloud_config/nodes.py
+++ b/os_cloud_config/nodes.py
@@ -54,6 +54,10 @@ def _extract_driver_info(node):
             driver_info["iboot_relay_id"] = node["pm_relay_id"]
         if "pm_port" in node:
             driver_info["iboot_port"] = node["pm_port"]
+    elif node["pm_type"] == "fake_pxe":
+        # The fake_pxe driver doesn't need any credentials since there's
+        # no power management
+        pass
     else:
         raise ValueError("Unknown pm_type: %s" % node["pm_type"])
     if "pxe" in node["pm_type"]:
diff --git a/tox.ini b/tox.ini
index 6da63ca..8ffb965 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,7 +30,7 @@ commands = python setup.py test --coverage --coverage-package-name='os_cloud_con
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125,H302,H803
+ignore = E123,E125,H302,H803,C901
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build
 max-complexity=14