diff --git a/runtime/plugins/comment/comment.lua b/runtime/plugins/comment/comment.lua
index 4c3032c6..ce49dcaa 100644
--- a/runtime/plugins/comment/comment.lua
+++ b/runtime/plugins/comment/comment.lua
@@ -35,6 +35,7 @@ ft["markdown"] = "<!-- %s -->"
 ft["nginx"] = "# %s"
 ft["nim"] = "# %s"
 ft["objc"] = "// %s"
+ft["ocaml"] = "(* %s *)"
 ft["pascal"] = "{ %s }"
 ft["perl"] = "# %s"
 ft["php"] = "// %s"