diff --git a/README.markdown b/README.markdown
index 55d345a2..2e2d6439 100644
--- a/README.markdown
+++ b/README.markdown
@@ -28,8 +28,8 @@ execute their script to find them.
 At the time of this writing, syntax checking plugins exist for Ada,
 AppleScript, AsciiDoc, Bourne shell, C, C++, C#, Chef, CoffeeScript, Coco,
 Coq, CSS, Cucumber, CUDA, D, Dart, DocBook, Dust, Elixir, Erlang, eRuby,
-Fortran, Gentoo metadata, Go, Haml, Haskell, Haxe, Handlebars, HSS, HTML,
-Java, JavaScript, JSON, LESS, LISP, LLVM intermediate language, Lua, MATLAB,
+Fortran, Gentoo metadata, Go, Haml, Haskell, Haxe, Handlebars, HSS, HTML, Java,
+JavaScript, JSON, LESS, Limbo, LISP, LLVM intermediate language, Lua, MATLAB,
 NASM, Objective-C, Objective-C++, OCaml, Perl, Perl POD, PHP, gettext Portable
 Object, Puppet, Python, reStructuredText, Ruby, Rust, SASS/SCSS, Scala, Slim,
 Tcl, TeX, Twig, TypeScript, Vala, Verilog, VHDL, xHtml, XML, XSLT, YAML, z80,