diff --git a/CHANGES.md b/CHANGES.md
index b1413c29a5..6ce6fe1250 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -26,6 +26,7 @@ Core Grammars:
 - enh(json) add json5 support [Kerry Shetline][]
 - fix(css) `unicode-range` parsing, issue #4253 [Kerry Shetline][]
 - fix(csharp) Support digit separators [te-ing][]
+- enh(kotlin) Add `ktm` and `ktx` as an alias for Kotlin [DarkMatter-999][]
 
 Documentation:
 
@@ -55,6 +56,7 @@ CONTRIBUTORS
 [te-ing]: https://github.com/te-ing
 [Anthony Martin]: https://github.com/anthony-c-martin
 [NriotHrreion]: https://github.com/NriotHrreion
+[DarkMatter-999]: https://github.com/DarkMatter-999
 
 
 ## Version 11.11.1
diff --git a/src/languages/kotlin.js b/src/languages/kotlin.js
index c31f5a9d49..025ed190ac 100644
--- a/src/languages/kotlin.js
+++ b/src/languages/kotlin.js
@@ -127,7 +127,9 @@ export default function(hljs) {
     name: 'Kotlin',
     aliases: [
       'kt',
-      'kts'
+      'kts',
+      'ktm',
+      'ktx'
     ],
     keywords: KEYWORDS,
     contains: [