diff --git a/ckan/config/deployment.ini_tmpl b/ckan/config/deployment.ini_tmpl
index bcb468f47c8..37590414c3b 100644
--- a/ckan/config/deployment.ini_tmpl
+++ b/ckan/config/deployment.ini_tmpl
@@ -33,6 +33,7 @@ app_instance_uuid = ${app_instance_uuid}
 
 # List the names of CKAN extensions to activate.
 # Note: This line is required to be here for packaging, even if it is empty.
+# Note: Add ``jsonpreview pdfpreview reclinepreview`` to enable the resource previews
 ckan.plugins = stats
 
 # If you'd like to fine-tune the individual locations of the cache data dirs