diff --git a/invesalius/gui/widgets/slice_menu.py b/invesalius/gui/widgets/slice_menu.py
index af1a0e6..5a7fb23 100644
--- a/invesalius/gui/widgets/slice_menu.py
+++ b/invesalius/gui/widgets/slice_menu.py
@@ -20,7 +20,11 @@
 #    detalhes.
 #--------------------------------------------------------------------------
 import sys
-from collections import OrderedDict
+
+try:
+    from collections import OrderedDict
+except(ImportError):
+    from ordereddict import OrderedDict
 
 import wx
 from wx.lib.pubsub import pub as Publisher
--
libgit2 0.21.2