diff --git a/config/config-ui.el b/config/config-ui.el
index ea8076169..8dcf51b9b 100644
--- a/config/config-ui.el
+++ b/config/config-ui.el
@@ -18,3 +18,6 @@
 (defadvice split-window (after move-point-to-new-window activate)
   "Moves the point to the newly created window after splitting."
   (other-window 1))
+;; font
+(if (eq window-system 'x)
+  (set-default-font "DejaVu Sans Mono-10"))