diff --git a/README.activity-report b/README.activity-report
index a9d1c0694a69a42b2bea1662e7a3c6610735603e..0758a7d32ce62d7e4b535732d26da585b3106395 100644
--- a/README.activity-report
+++ b/README.activity-report
@@ -104,7 +104,7 @@ _Note_: See between the lines 249 and 256; guess 251?
 *** TODO Generate the two PDFs: =guix build -f doc/build.scm=
 *** TODOs [0/5] Double-check the PDFs
 **** TODO page numbering
-**** TODO empty blank pages
+**** TODO empty blank pages: the booklet must properly render, with cover and back-cover appearing on the same A4 sheet
 **** TODO author list
 **** TODO editor name
 **** TODO date