diff --git a/pyqtgraph/widgets/DataTreeWidget.py b/pyqtgraph/widgets/DataTreeWidget.py
index 39cb0d45..edcfd427 100644
--- a/pyqtgraph/widgets/DataTreeWidget.py
+++ b/pyqtgraph/widgets/DataTreeWidget.py
@@ -93,7 +93,10 @@ class DataTreeWidget(QtGui.QTreeWidget):
             if isinstance(data, OrderedDict):
                 childs = data
             else:
-                childs = OrderedDict(sorted(data.items()))
+                try:
+                    childs = OrderedDict(sorted(data.items()))
+                except TypeError: # if sorting falls
+                    childs = OrderedDict(data.items())
         elif isinstance(data, (list, tuple)):
             desc = "length=%d" % len(data)
             childs = OrderedDict(enumerate(data))
@@ -121,4 +124,4 @@ class DataTreeWidget(QtGui.QTreeWidget):
             desc = asUnicode(data)
         
         return typeStr, desc, childs, widget
-        
\ No newline at end of file
+