diff --git a/share/misc/docbook.css b/share/misc/docbook.css
index 8c1bf85571..ced9431217 100644
--- a/share/misc/docbook.css
+++ b/share/misc/docbook.css
@@ -107,6 +107,7 @@ body address {
 html body {
 	margin: 1em 8% 1em 10%;
 	line-height: 1.2;
+	font-family: sans-serif;
 }
 
 .legalnotice {