diff --git a/README.md b/README.md
index 23ec83e73..dc09c7002 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,7 @@ Inline commenting syntax for a multitude of languages is supported:
 | `/* */` | e.g. C, Java|
 | `'` | e.g. Visual Basic .NET|
 | `--` | e.g. SQL, Haskell|
+| `<!-- --!>` | e.g. XML |
 
 This may be a convenient way for you to whitelist secrets, without having to
 regenerate the entire baseline again. Furthermore, this makes the whitelisted