diff --git a/manual/preamble.tex b/manual/preamble.tex
index 9223fee406..937e7b0196 100644
--- a/manual/preamble.tex
+++ b/manual/preamble.tex
@@ -21,6 +21,7 @@
 
 \documentclass[a4paper,11pt]{scrreprt}
 \usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
 % This manual used to use Palatino as font. This caused issues with small caps
 % (textsc), so do not use that font as default one anymore.