diff --git a/tmux.conf b/tmux.conf
index 2e862a0..8a5702d 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -22,3 +22,4 @@ set -g status-bg green
 if "test `hostname` = newkiwi" "set -g status-bg blue"
 set -g status-fg white
 
+if "test -f /opt/local/bin/reattach-to-user-namespace" "set-option -g default-command '/opt/local/bin/reattach-to-user-namespace bash'"