diff --git a/nvim/coc-settings.json b/nvim/coc-settings.json
index 3aa7eb3..8571e1a 100644
--- a/nvim/coc-settings.json
+++ b/nvim/coc-settings.json
@@ -1,3 +1,3 @@
 {
-  "coc.preferences.formatOnSaveFiletypes": ["cpp", "markdown", "python", "rust", "toml", "yaml"]
+  "coc.preferences.formatOnSaveFiletypes": ["cpp", "javascript", "typescript", "typescriptreact", "markdown", "python", "rust", "toml", "yaml"]
 }
diff --git a/nvim/init.vim b/nvim/init.vim
index cab2a2e..cb7ddf8 100644
--- a/nvim/init.vim
+++ b/nvim/init.vim
@@ -173,6 +173,7 @@ nnoremap <silent> K :call CocAction('doHover')<CR>
 
 nmap <silent> gd <Plug>(coc-definition)
 nmap <silent> gr <Plug>(coc-references)
+nmap <silent> <leader>rn <Plug>(coc-rename)
 
 " use <tab> for trigger completion and navigate to the next complete item
 function! s:check_back_space() abort