1 files changed, 11 insertions, 0 deletions
diff --git a/ext/tk/lib/tkextlib/bwidget/tree.rb b/ext/tk/lib/tkextlib/bwidget/tree.rb
index c405736653..e7178debe2 100644
--- a/ext/tk/lib/tkextlib/bwidget/tree.rb
+++ b/ext/tk/lib/tkextlib/bwidget/tree.rb
@@ -32,6 +32,17 @@ class Tk::BWidget::Tree
     end
   end
 
+  def __strval_optkeys
+    super() << 'crossfill' << 'linesfill'
+  end
+  private :__strval_optkeys
+
+  def __boolval_optkeys
+    super() << 'dragenabled' << 'dropenabled' << 
+      'redraw' << 'selectfill' << 'showlines'
+  end
+  private :__boolval_optkeys
+
   def __tkvariable_optkeys
     super() << 'helpvar'
   end