diff --git a/doc/jsoo.rst b/doc/jsoo.rst
index fb651121a224..e169b3b70c2f 100644
--- a/doc/jsoo.rst
+++ b/doc/jsoo.rst
@@ -71,7 +71,16 @@ Dune supports two modes of compilation:
 
 The separate compilation mode will be selected when the build profile
 is ``dev``, which is the default. It can also be explicitly specified
-in an ``env`` stanza. See :doc:`/reference/dune/env` for more
-information.
+in an ``env`` stanza (see :doc:`/reference/dune/env`) or per executable
+inside ``(js_of_ocaml (compilation_mode ...))`` (see :doc:`/reference/dune/executable`)
+
+Sourcemap
+=========
+
+Js_of_ocaml can generate sourcemap for the generated javascript file.
+It can either embed it at the end of the ``.js`` file or write it to separate file.
+By default, it is inlined when using the ``dev`` build profile, and is not generated otherwise.
+The behavior can explicitly be specified in an ``env`` stanza (see :doc:`/reference/dune/env`)
+or per executable inside ``(js_of_ocaml (sourcemap ...))`` (see :doc:`/reference/dune/executable`)
 
 .. _js_of_ocaml: http://ocsigen.org/js_of_ocaml/
diff --git a/doc/reference/dune/env.rst b/doc/reference/dune/env.rst
index 64f2a8968003..569faa70929b 100644
--- a/doc/reference/dune/env.rst
+++ b/doc/reference/dune/env.rst
@@ -45,6 +45,9 @@ Fields supported in ``<settings>`` are:
   compilation or not where ``<mode>`` is either ``whole_program`` or
   ``separate``.
 
+- ``(js_of_ocaml (sourcemap <mode>))`` controls whether to generate sourcemap
+  or not where ``<mode>`` is either ``no``, ``file`` (to generate sourcemap in a ``.map`` file next the the generated javascript file) or ``inline`` (to inline the sourcemap at the end of the generated javascript file).
+
 - ``(js_of_ocaml (runtest_alias <alias-name>))`` specifies the alias under which
   :ref:`inline_tests` and tests (:ref:`tests-stanza`) run for the `js` mode.
 
diff --git a/doc/reference/dune/executable.rst b/doc/reference/dune/executable.rst
index b9129d0e380e..0ac01b4ec7af 100644
--- a/doc/reference/dune/executable.rst
+++ b/doc/reference/dune/executable.rst
@@ -242,7 +242,7 @@ contains C stubs you may want to use ``(modes exe)``.
 js_of_ocaml
 ~~~~~~~~~~~
 
-In ``library`` and ``executables`` stanzas, you can specify ``js_of_ocaml``
+In ``library`` and ``executable`` stanzas, you can specify ``js_of_ocaml``
 options using ``(js_of_ocaml (<js_of_ocaml-options>))``.
 
 ``<js_of_ocaml-options>`` are all optional:
@@ -259,10 +259,16 @@ options using ``(js_of_ocaml (<js_of_ocaml-options>))``.
 - ``(javascript_files (<files-list>))`` to specify ``js_of_ocaml`` JavaScript
   runtime files.
 
+- ``(compilation_mode <mode>)`` where ``<mode>>`` is either ``whole_program`` or ``separate``.
+  This is only available inside ``executable`` stanzas.
+
+- ``(sourcemap <config>)`` where ``<config>>`` is one of ``no``, ``file`` or ``inline``.
+  This is only available inside ``executable`` stanzas.
+
 ``<flags>`` is specified in the :doc:`/reference/ordered-set-language`.
 
-The default value for ``(flags ...)`` depends on the selected build profile. The
-build profile ``dev`` (the default) will enable sourcemap and the pretty
+The default values for ``flags``, ``compilation_mode`` and ``sourcemap`` depend on the selected build profile. The
+build profile ``dev`` (the default) will enable inline sourcemap, separate compilation and pretty
 JavaScript output.
 
 See :ref:`jsoo` for more information.