diff --git a/.tmux.conf b/.tmux.conf
index 4e099db..2080809 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -25,3 +25,5 @@ bind C-a last-pane
 # reload this file
 bind r source-file /home/patrick/.tmux.conf \; display-message ".tmux.conf reloaded" 
 
+# automatic update env for ssh-agent
+set-option -g update-environment SSH_AUTH_SOCK