diff --git a/doc/asciidoc.css b/doc/asciidoc.css
index d8e95ff4f..489477040 100644
--- a/doc/asciidoc.css
+++ b/doc/asciidoc.css
@@ -1,5 +1,5 @@
 div.sectionbody {
-  font-family: serif,Georgia,"Times New Roman",Times;
+  font-family: serif,Helvetica,arial;
 }
 h5 {
     font-size: 0.95em;