diff --git a/doc/install-from-source.rst b/doc/install-from-source.rst
index 708d42a2a13..9df941b6b5c 100644
--- a/doc/install-from-source.rst
+++ b/doc/install-from-source.rst
@@ -337,7 +337,7 @@ version.
    search index by running the ``ckan search-index rebuild`` command, for
    example::
 
-    paster --plugin=ckan search-index rebuild --config=/path/to/your/ckan.ini
+    paster --plugin=ckan search-index rebuild -r --config=/path/to/your/ckan.ini
 
    See :ref:`rebuild search index` for details of the
    ``ckan search-index rebuild`` command.