diff --git a/latex/flake.nix b/latex/flake.nix
index 692906f..e2f0d1e 100644
--- a/latex/flake.nix
+++ b/latex/flake.nix
@@ -26,7 +26,7 @@
         buildPhase = ''
           mkdir -p .cache/texmf-var
           env TEXMFHOME=.cache TEXMFVAR=.cache/texmf-var \
-            latexmk -interaction=nonstopmode -pdf -lualatex \
+            latexmk -interaction=nonstopmode -lualatex \
             ${texInput}.tex
         '';
         installPhase = ''
diff --git a/latex/src/main.tex b/latex/src/main.tex
index 76a32c1..98104ad 100644
--- a/latex/src/main.tex
+++ b/latex/src/main.tex
@@ -1,7 +1,7 @@
 \documentclass[ a4paper
               , openany
               , twoside
-              ] {memoir}
+              ] {book}
 \usepackage[english]{babel}
 \usepackage[a-3u]{pdfx}
 \usepackage[utf8]{inputenc}