diff --git a/docs/manual/release-notes/rl-0.9.md b/docs/manual/release-notes/rl-0.9.md
index a9305b6b..164133a1 100644
--- a/docs/manual/release-notes/rl-0.9.md
+++ b/docs/manual/release-notes/rl-0.9.md
@@ -481,6 +481,7 @@ https://github.com/gorbit99/codewindow.nvim
 - Remove invalid filetypes from glsl lsp config (`vert`, `tesc`, `tese`, `frag`,
   `geom`, `comp`).
 - Remove invalid filetype from go lsp config (`gotmpl`).
+- Remove invalid filetype from markdown lsp config (`mdx`).
 
 [itscrystalline](https://github.com/itscrystalline):
 
diff --git a/modules/plugins/languages/markdown.nix b/modules/plugins/languages/markdown.nix
index 71773c8a..79d198e4 100644
--- a/modules/plugins/languages/markdown.nix
+++ b/modules/plugins/languages/markdown.nix
@@ -169,7 +169,7 @@ in {
       vim.lsp = {
         presets = genAttrs cfg.lsp.servers (_: {enable = true;});
         servers = genAttrs cfg.lsp.servers (_: {
-          filetypes = ["markdown" "mdx"];
+          filetypes = ["markdown"];
         });
       };
     })