diff --git a/tmux.conf b/tmux.conf
index ac6cd6dc..fd526c81 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -11,13 +11,14 @@ set -s escape-time 0
 # Rather than constraining window size to the maximum size of any client 
 # connected to the *session*, constrain window size to the maximum size of any 
 # client connected to *that window*. Much more reasonable.
-setw -g aggressive-resize on
+setw -g aggressive-resize off
 # go zsh, go
 set-option -g default-shell $SHELL
 # a mouse
 set -g mode-mouse on
 setw -g mouse-select-window on
 setw -g mouse-select-pane on
+set-option -g default-command "reattach-to-user-namespace -l zsh"
 
 
 ## Key bindings ###########