diff --git a/pysollib/tk/basetkmfxdialog.py b/pysollib/tk/basetkmfxdialog.py
index 26e715ea..5d358be0 100644
--- a/pysollib/tk/basetkmfxdialog.py
+++ b/pysollib/tk/basetkmfxdialog.py
@@ -2,6 +2,7 @@ import Tkinter
 
 from tkwidget import MfxDialog
 
+
 class BaseTkMfxDialog(MfxDialog):
     def _calcToolkit(self):
         return Tkinter
diff --git a/tests/style/py-flake8.t b/tests/style/py-flake8.t
index fddae8b2..5e5f03b7 100644
--- a/tests/style/py-flake8.t
+++ b/tests/style/py-flake8.t
@@ -27,7 +27,7 @@ my %skip =
 
 # my $cmd = shell_quote( 'flake8', '.' );
 my $cmd = shell_quote( 'flake8',
-    grep { not exists $skip{$_} } glob('./*.py ./scripts/*.py ./tests/board_gen/*.py ./pysollib/*.py ./pysollib/[cmgpuw]*/{*/*.py,*.py} ./pysollib/tile/*.py ./pysollib/ui/tktile/*.py') );
+    grep { not exists $skip{$_} } glob('./*.py ./scripts/*.py ./tests/board_gen/*.py ./pysollib/*.py ./pysollib/[cmgpuw]*/{*/*.py,*.py} ./pysollib/tile/*.py ./pysollib/tk/[a-b]*.py ./pysollib/ui/tktile/*.py') );
 
 # TEST
 eq_or_diff( scalar(`$cmd`), '', "flake8 is happy with the code." );