diff --git a/plugin/vim-tmux-runner.vim b/plugin/vim-tmux-runner.vim
index 328f2b3..7be89d1 100644
--- a/plugin/vim-tmux-runner.vim
+++ b/plugin/vim-tmux-runner.vim
@@ -125,6 +125,7 @@ endfunction
 function! s:FocusRunnerPane()
     call s:EnsureRunnerPane()
     call s:FocusTmuxPane(s:runner_pane)
+    call s:SendTmuxCommand("resize-pane -Z")
 endfunction
 
 function! s:ZoomRunnerPane()