diff --git a/.config/nvim/lua/config/autocmds.lua b/.config/nvim/lua/config/autocmds.lua
index 53c8e1d8..47755d2c 100644
--- a/.config/nvim/lua/config/autocmds.lua
+++ b/.config/nvim/lua/config/autocmds.lua
@@ -35,6 +35,9 @@ vim.api.nvim_create_autocmd("FileType", {
     syn include @tex syntax/tex.vim
     hi def link mathBlock Statement
     hi def link mathInline Statement
+
+    syn region mermBlock start=\`\`\`mermaid end=\`\`\`mermaid contains=@merm
+    sync include @merm syntax/mermaid.vim
   ]])
   end,
 })