bind Escape copy-mode
unbind p
bind p paste-buffer
-bind -t vi-copy 'v' begin-selection
-bind -t vi-copy 'y' copy-selection
-bind -t vi-copy 'Space' halfpage-down
-bind -t vi-copy 'Bspace' halfpage-up
+bind -T copy-mode-vi 'v' send-keys -X begin-selection
+bind -T copy-mode-vi 'y' send-keys -X copy-selection
+bind -T copy-mode-vi 'Space' send-keys -X halfpage-down
+bind -T copy-mode-vi 'Bspace' send-keys -X halfpage-up
# extra commands for interacting with the ICCCM clipboard
bind C-c run "tmux save-buffer - | xclip -i -sel clipboard"