diff --git a/docs/settings/local_settings.dev.py b/docs/settings/local_settings.dev.py
index df9cdccb06..8d6f5ba8ac 100644
--- a/docs/settings/local_settings.dev.py
+++ b/docs/settings/local_settings.dev.py
@@ -9,3 +9,6 @@ DEBUG_TOOLBAR_PATCH_SETTINGS = False  # Prevent DDT from patching the settings.
 
 INTERNAL_IPS = ('127.0.0.1',)
 MIDDLEWARE_CLASSES += ('debug_toolbar.middleware.DebugToolbarMiddleware',)
+
+# RUN_ES_TESTS = True  # Uncomment to run ES tests (Elasticsearch need
+                       # to be installed).
diff --git a/docs/topics/hacking/testing.rst b/docs/topics/hacking/testing.rst
index c799daa4af..1f39de19c7 100644
--- a/docs/topics/hacking/testing.rst
+++ b/docs/topics/hacking/testing.rst
@@ -18,6 +18,11 @@ thing you'll need to ensure is that the database credentials in your settings
 has full permissions to modify a database with ``test_`` prepended to it. By
 default the database name is ``olympia``, so the test database is
 ``test_olympia``.
+Optionally, in particular if the code you are working on is related to search,
+you'll want to run Elasticsearch tests. For this, you need to set the setting
+``RUN_ES_TESTS=True``. Obviously, you need Elasticsearch to be installed. See
+:ref:`elasticsearch` page for details.
+
 
 Running Tests
 -------------
diff --git a/settings_ci.py b/settings_ci.py
index 327c334217..3302035dd3 100644
--- a/settings_ci.py
+++ b/settings_ci.py
@@ -1,3 +1,4 @@
 from settings import *  # noqa
 
 LOG_LEVEL = logging.ERROR
+RUN_ES_TESTS = True