diff --git a/roles/calibre-web/README.rst b/roles/calibre-web/README.rst
index 33a61203d..a884d3259 100644
--- a/roles/calibre-web/README.rst
+++ b/roles/calibre-web/README.rst
@@ -3,9 +3,9 @@ Calibre-Web README
 ==================
 
 This Ansible role installs Calibre-Web in Internet-in-a-Box (we'll call it
-"calibre-web" from here on down).  The calibre-web server provides a clean
-interface for browsing, reading and downloading e-books using an existing
-Calibre database.
+"calibre-web" from here on down, noting that calibreweb_* variables do not
+include the dash!)  The calibre-web server provides a clean interface for
+browsing, reading and downloading e-books using an existing Calibre database.
 
 Access
 ------