diff --git a/doc/server_configurations.md b/doc/server_configurations.md
index e2c77c6879..00fd4898fe 100644
--- a/doc/server_configurations.md
+++ b/doc/server_configurations.md
@@ -5272,7 +5272,7 @@ require'lspconfig'.marksman.setup{}
   ```
   - `filetypes` : 
   ```lua
-  { "markdown" }
+  { "markdown", "markdown.mdx" }
   ```
   - `root_dir` : 
   ```lua
diff --git a/doc/server_configurations.txt b/doc/server_configurations.txt
index e2c77c6879..00fd4898fe 100644
--- a/doc/server_configurations.txt
+++ b/doc/server_configurations.txt
@@ -5272,7 +5272,7 @@ require'lspconfig'.marksman.setup{}
   ```
   - `filetypes` : 
   ```lua
-  { "markdown" }
+  { "markdown", "markdown.mdx" }
   ```
   - `root_dir` : 
   ```lua