diff --git a/pysollib/tk/basetkmfxdialog.py b/pysollib/tk/basetkmfxdialog.py
index 5d358be0..ffcdecdb 100644
--- a/pysollib/tk/basetkmfxdialog.py
+++ b/pysollib/tk/basetkmfxdialog.py
@@ -1,11 +1,11 @@
-import Tkinter
+from six.moves import tkinter
 
-from tkwidget import MfxDialog
+from pysollib.tk.tkwidget import MfxDialog
 
 
 class BaseTkMfxDialog(MfxDialog):
     def _calcToolkit(self):
-        return Tkinter
+        return tkinter
 
     def _calc_MfxDialog(self):
         return MfxDialog