diff --git a/Formula/txt2tags.rb b/Formula/txt2tags.rb
index c5d537e29c..29e3c3e0a1 100644
--- a/Formula/txt2tags.rb
+++ b/Formula/txt2tags.rb
@@ -1,12 +1,16 @@
-require 'formula'
-
 class Txt2tags < Formula
-  homepage 'http://txt2tags.org'
-  url 'https://txt2tags.googlecode.com/files/txt2tags-2.6.tgz'
-  sha1 '91bc47e02b9ec7f2fa39c8f7ff5c260164a74718'
+  homepage "http://txt2tags.org"
+  url "https://txt2tags.googlecode.com/files/txt2tags-2.6.tgz"
+  sha256 "601467d7860f3cfb3d48050707c6277ff3ceb22fa7be4f5bd968de540ac5b05c"
 
   def install
-    bin.install 'txt2tags'
+    bin.install "txt2tags"
     man1.install "doc/manpage.man" => "txt2tags.1"
   end
+
+  test do
+    (testpath/"test.txt").write ("\n= Title =")
+    system bin/"txt2tags", "-t", "html", "--no-headers", "test.txt"
+    assert_match %r{<H1>Title</H1>}, File.read("test.html")
+  end
 end