diff --git a/home/neovim.nix b/home/neovim.nix
index 3e2cc39..d0b2086 100644
--- a/home/neovim.nix
+++ b/home/neovim.nix
@@ -159,6 +159,8 @@ in
       autocmd VimEnter * silent! :cd `git rev-parse --show-toplevel`
 
       tnoremap <C-space> <C-\><C-n>
+
+      autocmd BufNewFile,BufRead *.mdx set filetype=markdown
     '';
 
     plugins = with pkgs.vimPlugins; [