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-rw-r--r--ext/tk/lib/tkextlib/itk/incr_tk.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/tk/lib/tkextlib/itk/incr_tk.rb b/ext/tk/lib/tkextlib/itk/incr_tk.rb
index 9f96109f1a..d37fd12a7c 100644
--- a/ext/tk/lib/tkextlib/itk/incr_tk.rb
+++ b/ext/tk/lib/tkextlib/itk/incr_tk.rb
@@ -115,6 +115,11 @@ module Tk
include Wm
include TkMenuSpec
+
+ def __strval_optkeys
+ super() << 'title'
+ end
+ private :__strval_optkeys
end
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