diff --git a/Sources/docc/DocCDocumentation.docc/formatting-your-documentation-content.md b/Sources/docc/DocCDocumentation.docc/formatting-your-documentation-content.md
index 9793f9717..ff16554bf 100644
--- a/Sources/docc/DocCDocumentation.docc/formatting-your-documentation-content.md
+++ b/Sources/docc/DocCDocumentation.docc/formatting-your-documentation-content.md
@@ -180,6 +180,7 @@ have one or more aliases.
 | scss        |                                                        |
 | shell       | console, shellsession                                  |
 | swift       |                                                        |
+| typescript  | ts, tsx, mts, cts                                      |
 | xml         | html, xhtml, rss, atom, xjb, xsd, xsl, plist, wsf, svg |
 | yaml        | yml                                                    |