diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index 3f85433..9a65633 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -85,7 +85,12 @@ class ProgressDialog(object):
                 
     def Update(self, value, message):
         if(int(value) != self.maximum):  
-            self.dlg.Update(value,message)
+            try:
+                self.dlg.Update(value,message)
+            #TODO:
+            #Exception in the Windows XP 64 Bits with wxPython 2.8.10
+            except(wx._core.PyAssertionError):
+                pass
             return True
         else:
             return False
--
libgit2 0.21.2