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-rw-r--r--ext/tk/lib/tkextlib/blt/busy.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/tk/lib/tkextlib/blt/busy.rb b/ext/tk/lib/tkextlib/blt/busy.rb
index 2f807fcd9c..b5287fb5b7 100644
--- a/ext/tk/lib/tkextlib/blt/busy.rb
+++ b/ext/tk/lib/tkextlib/blt/busy.rb
@@ -44,6 +44,7 @@ class << Tk::BLT::Busy
private :__item_config_cmd
undef itemcget
+ undef itemcget_tkstring
alias configure itemconfigure
alias configinfo itemconfiginfo
alias current_configinfo current_itemconfiginfo