diff --git a/dot_tmux.conf b/dot_tmux.conf
index 6687995..b29fa6c 100644
--- a/dot_tmux.conf
+++ b/dot_tmux.conf
@@ -2,7 +2,7 @@
 #
 
 # address vim mode switching delay (http://superuser.com/a/252717/65504)
-set -s escape-time 0
+set -s escape-time 50
 
 # increase scrollback buffer size
 set -g history-limit 50000