diff --git a/test/TC_FXTreeList.rb b/test/TC_FXTreeList.rb
index d72ca295506054c22668804f941d1830d139f8e5..58a77648dea583cfb8a600f28140113ae907a921 100755
--- a/test/TC_FXTreeList.rb
+++ b/test/TC_FXTreeList.rb
@@ -67,12 +67,12 @@ class TC_FXTreeList < Fox::TestCase
     @treeList.connect(SEL_INSERTED) { |sender, sel, ptr|
       anItem = ptr
     }
-    theItem = @treeList.appendItem(nil, "", nil, nil, nil, true)
+    theItem = @treeList.appendItem(nil, FXTreeItem.new(""), true)
     assert_same(theItem, anItem)
   end
 
   def test_SEL_DELETED
-    theItem = @treeList.appendItem(nil, "")
+    theItem = @treeList.appendItem(nil, FXTreeItem.new(""))
     anItem = nil
     @treeList.connect(SEL_DELETED) { |sender, sel, ptr|
       anItem = ptr