diff --git a/src/content/docs/reference/configuration.mdx b/src/content/docs/reference/configuration.mdx
index 10f99f9f3..e9c27bad5 100644
--- a/src/content/docs/reference/configuration.mdx
+++ b/src/content/docs/reference/configuration.mdx
@@ -527,6 +527,15 @@ Print trailing commas wherever possible in multi-line comma-separated syntactic
 
 > Default: `"all"`
 
+### `javascript.formatter.trailingCommas`
+
+Print trailing commas wherever possible in multi-line comma-separated syntactic structures. Possible values:
+- `"all"`, the trailing comma is always added;
+- `"es5"`, the trailing comma is added only in places where it's supported by older version of JavaScript;
+- `"none"`, trailing commas are never added.
+
+> Default: `"all"`
+
 ### `javascript.formatter.semicolons`
 
 It configures where the formatter prints semicolons: