diff --git a/vim/vimrc b/vim/vimrc
index 48ca5667..8eb13b0c 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -341,7 +341,11 @@ xnoremap <silent> <leader>ag y:Ag <C-R>"<CR>
 nmap <leader>cd :cd %:p:h<CR>
 
 " <leader>r : screen sucks, redraw everything
-nnoremap <leader>r :redraw!<CR>
+function! Redraw()
+  redraw!
+  call s:auto_termguicolors()   " re-detect true colors
+endfunction
+nnoremap <leader>r :call Redraw()<CR>
 
 " <leader>src : source ~/.vimrc
 nnoremap <leader>src :source ~/.vimrc<CR>
@@ -429,9 +433,28 @@ if &term =~ '256color'
 endif
 
 " 24-bit true color: neovim 0.1.5+ / vim 7.4.1799+
-if (has("termguicolors")) && &term == 'xterm-256color'
-  set termguicolors
-endif
+" enable ONLY if TERM is set valid and it is NOT under mosh
+function! s:is_mosh()
+  let output = system("is_mosh -v")
+  if v:shell_error
+    return 0
+  endif
+  return !empty(l:output)
+endfunction
+
+function s:auto_termguicolors()
+  if !(has("termguicolors"))
+    return
+  endif
+
+  if &term == 'xterm-256color' && !s:is_mosh()
+    set termguicolors
+  else
+    set notermguicolors
+  endif
+endfunction
+call s:auto_termguicolors()
+
 
 " apply base theme
 silent! colorscheme xoria256