diff --git a/pysollib/tile/fontsdialog.py b/pysollib/tile/fontsdialog.py
index b49c205b..0a5eb40f 100644
--- a/pysollib/tile/fontsdialog.py
+++ b/pysollib/tile/fontsdialog.py
@@ -25,7 +25,7 @@ __all__ = ['FontsDialog']
 
 # imports
 from six.moves import tkinter
-import ttk
+from . import ttk
 from six.moves import tkinter_font
 
 # PySol imports
@@ -33,9 +33,9 @@ from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
 # Toolkit imports
-from tkwidget import MfxDialog
+from .tkwidget import MfxDialog
 from pysollib.ui.tktile.tkutil import bind
-from tkwidget import PysolScale
+from .tkwidget import PysolScale
 
 
 # ************************************************************************
diff --git a/pysollib/tile/menubar.py b/pysollib/tile/menubar.py
index d01bf4e4..9b787432 100644
--- a/pysollib/tile/menubar.py
+++ b/pysollib/tile/menubar.py
@@ -24,7 +24,7 @@
 __all__ = ['PysolMenubarTk']
 
 # imports
-import ttk
+from . import ttk
 
 # PySol imports
 from pysollib.mygettext import _, n_
@@ -32,13 +32,13 @@ from pysollib.util import CARDSET
 from pysollib.settings import TITLE
 
 # toolkit imports
-from tkwidget import MfxMessageDialog
-from selectgame import SelectGameDialog, SelectGameDialogWithPreview
-from soundoptionsdialog import SoundOptionsDialog
-from selecttile import SelectTileDialogWithPreview
+from .tkwidget import MfxMessageDialog
+from .selectgame import SelectGameDialog, SelectGameDialogWithPreview
+from .soundoptionsdialog import SoundOptionsDialog
+from .selecttile import SelectTileDialogWithPreview
 from pysollib.ui.tktile.findcarddialog import connect_game_find_card_dialog, \
         destroy_find_card_dialog
-from solverdialog import connect_game_solver_dialog
+from .solverdialog import connect_game_solver_dialog
 
 from pysollib.ui.tktile.menubar import MfxMenu, PysolMenubarTkCommon
 # ************************************************************************
@@ -67,7 +67,7 @@ class PysolMenubarTk(PysolMenubarTkCommon):
         return connect_game_solver_dialog(game)
 
     def _calcWizardDialog(self):
-        from wizarddialog import WizardDialog
+        from .wizarddialog import WizardDialog
         return WizardDialog
 
     def _calcSelectGameDialog(self):
diff --git a/pysollib/tile/playeroptionsdialog.py b/pysollib/tile/playeroptionsdialog.py
index 9a1d46e7..6896b17f 100644
--- a/pysollib/tile/playeroptionsdialog.py
+++ b/pysollib/tile/playeroptionsdialog.py
@@ -25,14 +25,14 @@ __all__ = ['PlayerOptionsDialog']
 
 # imports
 from six.moves import tkinter
-import ttk
+from . import ttk
 
 # PySol imports
 from pysollib.mygettext import _
 from pysollib.mfxutil import KwStruct
 
 # Toolkit imports
-from tkwidget import MfxDialog
+from .tkwidget import MfxDialog
 
 
 # ************************************************************************
diff --git a/pysollib/tile/progressbar.py b/pysollib/tile/progressbar.py
index 8fd33850..9a3af9fa 100644
--- a/pysollib/tile/progressbar.py
+++ b/pysollib/tile/progressbar.py
@@ -25,7 +25,7 @@ __all__ = ['PysolProgressBar']
 
 # imports
 from six.moves import tkinter
-import ttk
+from . import ttk
 
 # Toolkit imports
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED