diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index a67c3e7..4d82580 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -256,7 +256,7 @@ def SaveChangesDialog(filename):
                                "Save changes to "+filename+"?",
                                wx.ICON_QUESTION | wx.YES_NO | wx.CANCEL)
     else:
-        dlg = wx.MessageDialog(None, "Save changes to "+filename+"?",,
+        dlg = wx.MessageDialog(None, "Save changes to "+filename+"?",
                                "InVesalius 3",
                                wx.ICON_QUESTION | wx.YES_NO | wx.CANCEL)
 
--
libgit2 0.21.2