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-rw-r--r--ext/tk/lib/tkdialog.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/tk/lib/tkdialog.rb b/ext/tk/lib/tkdialog.rb
index fd6e041576..2c280d5618 100644
--- a/ext/tk/lib/tkdialog.rb
+++ b/ext/tk/lib/tkdialog.rb
@@ -3,6 +3,8 @@ require "tk"
class TkDialog2 < TkWindow
extend Tk
+ TkCommandNames = ['tk_dialog'.freeze].freeze
+
def self.show(*args)
dlog = self.new(*args)
dlog.show