tmux forcing me to use bash? yuck.

tmux.conf

@@ -19,4 +19,3 @@ set -g status-left "session: #S | window: #I | pane: #P"
 set -g prefix C-a 
 bind-key C-a last-window
 set -g default-terminal "screen-256color"
-set -g default-command "/bin/bash"