diff --git a/plugin/bracketed-paste.vim b/plugin/bracketed-paste.vim
index 196ec9b..8aa2e36 100644
--- a/plugin/bracketed-paste.vim
+++ b/plugin/bracketed-paste.vim
@@ -14,7 +14,7 @@ if !exists("g:bracketed_paste_tmux_wrap")
 endif
 
 function! WrapForTmux(s)
-  if !g:bracketed_paste_tmux_wrap || !exists('$TMUX')
+  if !g:bracketed_paste_tmux_wrap || (!exists('$TMUX') && !exists('$STY'))
     return a:s
   endif