diff --git a/lua/otter/tools/extensions.lua b/lua/otter/tools/extensions.lua
index 641a889..6ca5a5a 100644
--- a/lua/otter/tools/extensions.lua
+++ b/lua/otter/tools/extensions.lua
@@ -12,4 +12,5 @@ return {
   sql = "sql",
   elixir = "ex",
   markdown = "md",
+  dot = "dot"
 }