diff --git a/vim.nix b/vim.nix
index 731f2c5..682bd62 100644
--- a/vim.nix
+++ b/vim.nix
@@ -114,9 +114,10 @@ let plugins = let inherit (vimUtils) buildVimPluginFrom2Nix; in {
       let g:vimtex_latexmk_enabled=0
 
       " conceal to unicode symbols
+      nnoremap <leader>l :silent let &conceallevel = (&conceallevel+1)%4<CR>
       set conceallevel=2
       set concealcursor=nvc
-      let g:tex_conceal="adgms"
+      let g:tex_conceal="abdmgs"
 
       " nice pluginless stuff
       set path+=**