diff --git a/runtime/syntax/dune.vim b/runtime/syntax/dune.vim
new file mode 100644
index 0000000..f901813
--- /dev/null
+++ b/runtime/syntax/dune.vim
@@ -0,0 +1,46 @@
+" Language:    Dune buildsystem
+" Maintainer:  Markus Mottl        <markus.mottl@gmail.com>
+"              Anton Kochkov       <anton.kochkov@gmail.com>
+" URL:         https://github.com/rgrinberg/vim-ocaml
+" Last Change:
+"              2019 Feb 27 - Add newer keywords to the syntax (Simon Cruanes)
+"              2018 May 8 - Check current_syntax (Kawahara Satoru)
+"              2018 Mar 29 - Extend jbuild syntax with more keywords (Petter A. Urkedal)
+"              2017 Sep 6 - Initial version (Etienne Millon)
+
+if exists("b:current_syntax")
+    finish
+endif
+
+set syntax=lisp
+syn case match
+
+" The syn-iskeyword setting lacks #,? from the iskeyword setting here.
+" Clearing it avoids maintaining keyword characters in multiple places.
+syn iskeyword clear
+
+syn keyword lispDecl jbuild_version library executable executables rule ocamllex ocamlyacc menhir alias install
+
+syn keyword lispKey name public_name synopsis modules libraries wrapped
+syn keyword lispKey preprocess preprocessor_deps optional c_names cxx_names
+syn keyword lispKey install_c_headers modes no_dynlink self_build_stubs_archive
+syn keyword lispKey ppx_runtime_libraries virtual_deps js_of_ocaml link_flags
+syn keyword lispKey javascript_files flags ocamlc_flags ocamlopt_flags pps staged_pps
+syn keyword lispKey library_flags c_flags c_library_flags kind package action
+syn keyword lispKey deps targets locks fallback
+syn keyword lispKey inline_tests tests names
+
+syn keyword lispAtom true false
+
+syn keyword lispFunc cat chdir copy# diff? echo run setenv
+syn keyword lispFunc ignore-stdout ignore-stderr ignore-outputs
+syn keyword lispFunc with-stdout-to with-stderr-to with-outputs-to
+syn keyword lispFunc write-file system bash
+
+syn cluster lispBaseListCluster add=duneVar
+syn match duneVar '\${[@<^]}' containedin=lispSymbol
+syn match duneVar '\${\k\+\(:\k\+\)\?}' containedin=lispSymbol
+
+hi def link duneVar Identifier
+
+let b:current_syntax = "dune"
diff --git a/runtime/syntax/ocaml.vim b/runtime/syntax/ocaml.vim
index 6ac8cab..42913f2 100644
--- a/runtime/syntax/ocaml.vim
+++ b/runtime/syntax/ocaml.vim
@@ -4,7 +4,7 @@
 " Maintainers:  Markus Mottl      <markus.mottl@gmail.com>
 "               Karl-Heinz Sylla  <Karl-Heinz.Sylla@gmd.de>
 "               Issac Trotts      <ijtrotts@ucdavis.edu>
-" URL:          http://www.ocaml.info/vim/syntax/ocaml.vim
+" URL:          https://github.com/rgrinberg/vim-ocaml
 " Last Change:
 "               2018 Nov 08 - Improved highlighting of operators (Maëlan)
 "               2018 Apr 22 - Improved support for PPX (Andrey Popp)