diff --git a/vars/local_vars_medium.yml b/vars/local_vars_medium.yml
index 8dedfe967..f7a7d77cb 100644
--- a/vars/local_vars_medium.yml
+++ b/vars/local_vars_medium.yml
@@ -133,6 +133,7 @@ iiab_usb_lib_show_all: True
 
 # 6-GENERIC-APPS
 
+# Calibre E-Book Library
 # WARNING: CALIBRE INSTALLS GRAPHICAL LIBRARIES SIMILAR TO X WINDOWS & OPENGL
 # ON (HEADLESS, SERVER, LITE) OS'S THAT DON'T ALREADY HAVE THESE INSTALLED.