diff --git a/Lib/fontTools/inspect.py b/Lib/fontTools/inspect.py
index 2a2f3df4a..93186f02d 100644
--- a/Lib/fontTools/inspect.py
+++ b/Lib/fontTools/inspect.py
@@ -219,7 +219,7 @@ class FontTreeModel(gtk.GenericTreeModel):
 	def on_iter_parent(self, rowref):
 		return rowref.get_parent()
 
-class Inspect:
+class Inspect(object):
 
 	def _delete_event(self, widget, event, data=None):
 		gtk.main_quit()