diff --git a/lisp/init-built-in.el b/lisp/init-built-in.el
index e57e476..1dd2116 100644
--- a/lisp/init-built-in.el
+++ b/lisp/init-built-in.el
@@ -27,6 +27,9 @@
 ;; Highlight trail whitespace
 (setq show-trailing-whitespace t)
 
+;; reset `split-width-threshold' to old value
+(setq split-width-threshold 160)
+
 ;; Save minibuffer history
 (savehist-mode)
 (setq history-length                1000