diff --git a/languages.toml b/languages.toml
index 43bb90259..6b47f65da 100644
--- a/languages.toml
+++ b/languages.toml
@@ -3029,6 +3029,7 @@ roots = ["sln", "fsproj"]
 injection-regex = "fsharp"
 file-types = ["fs", "fsx", "fsi", "fsscript"]
 comment-token = "//"
+block-comment-tokens = { start = "(*", end = "*)" }
 indent = { tab-width = 4, unit = "    " }
 auto-format = true
 language-servers = ["fsharp-ls"]