diff --git a/benchmark/xml/lexer/html_void_element_bench.rb b/benchmark/xml/lexer/html_void_element_bench.rb
new file mode 100644
index 0000000..10293c4
--- /dev/null
+++ b/benchmark/xml/lexer/html_void_element_bench.rb
@@ -0,0 +1,23 @@
+require_relative '../../benchmark_helper'
+
+content = ''
+max_size = 5 * 1024 * 1024
+
+while content.bytesize <= max_size
+ content << "
"
+end
+
+html = "#{content}"
+html_caps = "#{content.upcase}"
+
+Benchmark.ips do |bench|
+ bench.report 'void elements' do
+ Oga::XML::Lexer.new(html, :html => true).advance { }
+ end
+
+ bench.report 'void elements caps' do
+ Oga::XML::Lexer.new(html_caps, :html => true).advance { }
+ end
+
+ bench.compare!
+end