diff --git a/book.org b/book.org
index 473a37c..34c195d 100644
--- a/book.org
+++ b/book.org
@@ -3,7 +3,7 @@
 #+AUTHOR: Charlotte Van Petegem
 #+LANGUAGE: en-gb
 #+LATEX_CLASS: book
-#+LATEX_CLASS_OPTIONS: [paper=240mm:170mm,parskip=half-,numbers=noendperiod,BCOR=10mm,10pt]
+#+LATEX_CLASS_OPTIONS: [paper=240mm:170mm,parskip=half-,numbers=noendperiod,BCOR=10mm,DIV=10]
 #+LATEX_COMPILER: lualatex
 #+LATEX_HEADER: \usepackage[inline]{enumitem}
 #+LATEX_HEADER: \usepackage{luacode}