diff --git a/.vimrc b/.vimrc
index 78767b6..0829e68 100755
--- a/.vimrc
+++ b/.vimrc
@@ -174,9 +174,10 @@ let g:go_highlight_methods = 1
 let g:go_highlight_structs = 1
 let g:go_highlight_operators = 1
 let g:go_highlight_build_constraints = 1
+let g:go_highlight_extra_types = 1
 let g:go_fmt_command = "goimports"
  
-"
+" rename symbol
 au FileType go nmap <Leader>r <Plug>(go-rename)
 
 " show type info