diff --git a/vim/vimrc b/vim/vimrc
index 868862e..574737a 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -115,21 +115,21 @@ endfunction
 function! s:ensurePython()
     if (s:cmdexitcode('pyls -h') || s:cmdexitcode('python -c "import neovim"') || s:cmdexitcode('python -c "import rope"'))
         let l:jobid = s:asyncFunc('pip install python-language-server pynvim rope', 's:handlepython')
-        au VimEnter * CocInstall coc-python
+        au VimEnter *.py CocInstall coc-python
     endif
 endfunction
 
 function! s:ensureRuby()
     if (s:cmdexitcode('solargraph -v') || s:cmdexitcode('ruby -e "require \"neovim\""'))
         let l:jobid = s:asyncFunc('gem install solargraph neovim', 's:handleruby')
-        au VimEnter * CocInstall coc-solargraph
+        au VimEnter *.rb CocInstall coc-solargraph
     endif
 endfunction
 
 function! s:ensureNode()
     if (s:cmdexitcode('neovim-node-host --version'))
         let l:jobid = s:asyncFunc('yarn global add neovim', 's:handlenode')
-        au VimEnter * CocInstall coc-tsserver
+        au VimEnter *.js,*.ts CocInstall coc-tsserver
     endif
 endfunction