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-rw-r--r--ext/tk/lib/tkextlib/iwidgets/spinner.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/tk/lib/tkextlib/iwidgets/spinner.rb b/ext/tk/lib/tkextlib/iwidgets/spinner.rb
index 4dac4ed58..174b9bd50 100644
--- a/ext/tk/lib/tkextlib/iwidgets/spinner.rb
+++ b/ext/tk/lib/tkextlib/iwidgets/spinner.rb
@@ -46,7 +46,7 @@ class Tk::Iwidgets::Spinner
end
def __validation_class_list
- super << EntryfieldValidate
+ super() << EntryfieldValidate
end
Tk::ValidateConfigure.__def_validcmd(binding, EntryfieldValidate)