diff --git a/client/plugins/constants.js b/client/plugins/constants.js
index f379c618..39a383c5 100644
--- a/client/plugins/constants.js
+++ b/client/plugins/constants.js
@@ -1,6 +1,6 @@
 const SupportedFileTypes = {
   image: ['png', 'jpg', 'jpeg', 'webp'],
-  audio: ['m4b', 'mp3', 'm4a', 'flac', 'opus', 'ogg', 'oga', 'mp4', 'aac', 'wma', 'aiff', 'wav', 'webm', 'webma'],
+  audio: ['m4b', 'mp3', 'm4a', 'flac', 'opus', 'ogg', 'oga', 'mp4', 'aac', 'wma', 'aiff', 'wav', 'webm', 'webma', 'mka'],
   ebook: ['epub', 'pdf', 'mobi', 'azw3', 'cbr', 'cbz'],
   info: ['nfo'],
   text: ['txt'],
diff --git a/server/utils/constants.js b/server/utils/constants.js
index 7f7e324e..66c87d06 100644
--- a/server/utils/constants.js
+++ b/server/utils/constants.js
@@ -46,7 +46,8 @@ module.exports.AudioMimeType = {
   WMA: 'audio/x-ms-wma',
   AIFF: 'audio/x-aiff',
   WEBM: 'audio/webm',
-  WEBMA: 'audio/webm'
+  WEBMA: 'audio/webm',
+  MKA: 'audio/x-matroska'
 }
 
 module.exports.VideoMimeType = {
diff --git a/server/utils/globals.js b/server/utils/globals.js
index d8999152..f4bbf0a2 100644
--- a/server/utils/globals.js
+++ b/server/utils/globals.js
@@ -1,6 +1,6 @@
 const globals = {
   SupportedImageTypes: ['png', 'jpg', 'jpeg', 'webp'],
-  SupportedAudioTypes: ['m4b', 'mp3', 'm4a', 'flac', 'opus', 'ogg', 'oga', 'mp4', 'aac', 'wma', 'aiff', 'wav', 'webm', 'webma'],
+  SupportedAudioTypes: ['m4b', 'mp3', 'm4a', 'flac', 'opus', 'ogg', 'oga', 'mp4', 'aac', 'wma', 'aiff', 'wav', 'webm', 'webma', 'mka'],
   SupportedEbookTypes: ['epub', 'pdf', 'mobi', 'azw3', 'cbr', 'cbz'],
   SupportedVideoTypes: ['mp4'],
   TextFileTypes: ['txt', 'nfo'],