diff --git a/lua/Comment/ft.lua b/lua/Comment/ft.lua
index 34afffa..4f0eecd 100644
--- a/lua/Comment/ft.lua
+++ b/lua/Comment/ft.lua
@@ -41,6 +41,7 @@ local M = {
 local L = setmetatable({
     arduino = { M.cxx_l, M.cxx_b },
     applescript = { M.hash },
+    antlr4 = { M.cxx_l, M.cxx_b },
     asm = { M.hash },
     astro = { M.html },
     autohotkey = { M.semicolon, M.cxx_b },