diff --git a/assets/main.scss b/assets/main.scss
index dafb743..f7288a1 100644
--- a/assets/main.scss
+++ b/assets/main.scss
@@ -5,9 +5,10 @@
 @charset "utf-8";
 
 // Our variables
-$base-font-family: "Liberation Serif", "Tinos", "Times New Roman", serif;
-$monospace-font-family: "Liberation Mono", "Cousine", "Courier New", monospace;
-//$base-font-family: "Liberation Sans", "Arimo", "Arial", sans-serif;
+$base-font-family: ui-serif, "Liberation Serif", Tinos, "Times New Roman", serif;
+$monospace-font-family: ui-monospace, "Liberation Mono", Cousine, "Courier New",
+  monospace;
+//$base-font-family: ui-sans-serif, "Liberation Sans", "Arimo", "Arial", sans-serif;
 
 // CSS of used Jekyll theme
 @import "{{ site.theme }}";