diff --git a/tests/style/py-flake8.t b/tests/style/py-flake8.t
index 6b104d68..89b75a97 100644
--- a/tests/style/py-flake8.t
+++ b/tests/style/py-flake8.t
@@ -27,7 +27,9 @@ 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/tk/{[a-sw],ta,ti,to,tkhtml,tkstats,tktree,tkwidg}*.py ./pysollib/ui/tktile/*.py') );
+    sort { $a cmp $b } grep { not exists $skip{$_} } glob('./*.py ./scripts/*.py ./tests/board_gen/*.py ./pysollib/*.py ./pysollib/*/{*/*.py,*.py}') );
+
+# diag("<$cmd>");
 
 # TEST
 eq_or_diff( scalar(`$cmd`), '', "flake8 is happy with the code." );