diff --git a/src/python/m5/SimObject.py b/src/python/m5/SimObject.py
index 0c9e738f62..47e6474676 100644
--- a/src/python/m5/SimObject.py
+++ b/src/python/m5/SimObject.py
@@ -1520,11 +1520,10 @@ class SimObject(object):
         yield  # make this function a (null) generator
 
     def recurseDeviceTree(self, state):
-        for child in [getattr(self, c) for c in self._children]:
+        for child in self._children.itervalues():
             for item in child: # For looping over SimObjectVectors
-                if isinstance(item, SimObject):
-                    for dt in item.generateDeviceTree(state):
-                        yield dt
+                for dt in item.generateDeviceTree(state):
+                    yield dt
 
 # Function to provide to C++ so it can look up instances based on paths
 def resolveSimObject(name):