diff --git a/autoload/base16.vim b/autoload/base16.vim
index d482b22..20b0e96 100644
--- a/autoload/base16.vim
+++ b/autoload/base16.vim
@@ -6,6 +6,7 @@ function! base16#highlight(bang, group, ...)
     echohl None
     return
   endif
+  let l:termguicolors = (has('termguicolors') && &termguicolors)
   let l:fg = 0
   let l:bg = 0
   let l:sp = 0
@@ -15,14 +16,14 @@ function! base16#highlight(bang, group, ...)
       let l:fg = 1
       let [l:gui, l:cterm] = s:Color(l:arg[3:])
       execute 'highlight' a:group 'guifg='.l:gui
-      if !has('termguicolors') || !&termguicolors
+      if !termguicolors
         execute 'highlight' a:group 'ctermfg='.l:cterm
       endif
     elseif l:arg =~? '^bg='
       let l:bg = 1
       let [l:gui, l:cterm] = s:Color(l:arg[3:])
       execute 'highlight' a:group 'guibg='.l:gui
-      if !has('termguicolors') || !&termguicolors
+      if !termguicolors
         execute 'highlight' a:group 'ctermbg='.l:cterm
       endif
     elseif l:arg =~? '^sp='
@@ -44,8 +45,14 @@ function! base16#highlight(bang, group, ...)
   endif
   if len(l:attrs) > 0
     execute 'highlight' a:group 'gui='.join(l:attrs, ',')
+      if !termguicolors
+        execute 'highlight' a:group 'cterm='.join(l:attrs, ',')
+      endif
   elseif a:bang
     execute 'highlight' a:group 'gui=NONE'
+      if !termguicolors
+        execute 'highlight' a:group 'cterm=NONE'
+      endif
   endif
 endfunction