diff --git a/tmux/tmux.conf b/tmux/tmux.conf
index 9c1db49..aaa3dc3 100644
--- a/tmux/tmux.conf
+++ b/tmux/tmux.conf
@@ -7,6 +7,8 @@ set -g set-clipboard on
 
 set -s escape-time 0
 
+set -g update-environment "SSH_AUTH_SOCK SSH_CONNECTION SSH_TTY DISPLAY"
+
 unbind C-b
 set-option -g prefix C-s