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-rw-r--r--ext/tk/lib/multi-tk.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/tk/lib/multi-tk.rb b/ext/tk/lib/multi-tk.rb
index e054f3dd918..48e652e8825 100644
--- a/ext/tk/lib/multi-tk.rb
+++ b/ext/tk/lib/multi-tk.rb
@@ -27,7 +27,7 @@ MultiTkIp_OK.freeze
class MultiTkIp
# ignore exception on the mainloop
- TclTkLib.mainloop_abort_on_exception = false
+ TclTkLib.mainloop_abort_on_exception = nil
######################################