diff --git a/minify-html-ruby/lib/minify_html.rb b/minify-html-ruby/lib/minify_html.rb
index fef291d1..bc38370d 100644
--- a/minify-html-ruby/lib/minify_html.rb
+++ b/minify-html-ruby/lib/minify_html.rb
@@ -1 +1,8 @@
-require_relative "minify_html/minify_html"
+# frozen_string_literal: true
+
+begin
+  /(?<ruby_version>\d+\.\d+)/ =~ RUBY_VERSION
+  require_relative "#{ruby_version}/minify_html"
+rescue LoadError
+  require_relative "minify_html.so"
+end
diff --git a/minify-html-ruby/minify_html.gemspec b/minify-html-ruby/minify_html.gemspec
index b61dd513..5aa201e0 100644
--- a/minify-html-ruby/minify_html.gemspec
+++ b/minify-html-ruby/minify_html.gemspec
@@ -4,7 +4,8 @@ Gem::Specification.new do |spec|
   spec.authors       = ["Wilson Lin"]
   spec.email         = ["code@wilsonl.in"]
   spec.license       = "MIT"
-  spec.files         = Dir["lib/**", "ext/**", "README.md"]
+  # Cargo.toml represents workspace created during CI workflow, required for building native extension from source.
+  spec.files         = Dir["lib/**", "ext/**", "Cargo.toml", "README.md"]
   spec.summary       = "Extremely fast and smart HTML + JS + CSS minifier"
   spec.homepage      = "https://github.com/wilsonzlin/minify-html"