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-rw-r--r--ext/tk/lib/tkextlib/bwidget/labelentry.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/tk/lib/tkextlib/bwidget/labelentry.rb b/ext/tk/lib/tkextlib/bwidget/labelentry.rb
index 95b40946a6..16e7b46933 100644
--- a/ext/tk/lib/tkextlib/bwidget/labelentry.rb
+++ b/ext/tk/lib/tkextlib/bwidget/labelentry.rb
@@ -21,7 +21,7 @@ class Tk::BWidget::LabelEntry
TkCommandNames = ['LabelEntry'.freeze].freeze
WidgetClassName = 'LabelEntry'.freeze
- WidgetClassNames[WidgetClassName] = self
+ WidgetClassNames[WidgetClassName] ||= self
def __strval_optkeys
super() << 'helptext' << 'insertbackground' << 'entryfg' << 'entrybg'