diff --git a/plugin/settings.vim b/plugin/settings.vim
index 17dcd45..3cdef7b 100644
--- a/plugin/settings.vim
+++ b/plugin/settings.vim
@@ -118,7 +118,7 @@ set lazyredraw
 
 " Change cursor dependant on current mode
 if has('cursorshape') && has('unix') && !has('gui_running')
-  if $ITERM_PROFILE !=# ''
+  if $TMUX ==# '' && $ITERM_PROFILE !=# ''
     let &t_SI = "\<Esc>]50;CursorShape=1\x7"
     let &t_EI = "\<Esc>]50;CursorShape=0\x7"
   else